Home / 387,342.72-534,708-260,088.48

Finding the Fourth Proportional to 387,342.72, 534,708 and 260,088.48

Calculator

Solution

The fourth proportional to 387,342.72, 534,708 and 260,088.48 is: 359,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,342.72 : 534,708 = 260,088.48 : x
  2. Step 2: Convert to fraction form
    387,342.72/534,708 = 260,088.48/x
  3. Step 3: Cross multiply
    387,342.72x = 534,708 × 260,088.48
  4. Step 4: Simplify right side
    387,342.72x = 139,071,390,963.84
  5. Step 5: Solve for x
    x = 139,071,390,963.84/387,342.72
  6. Step 6: Final answer
    x = 359,039.64

Related Problems

Find fourth proportional to 193,671.36, 267,354 and 130,044.24
Half scale
Find fourth proportional to 774,685.44, 1,069,416 and 520,176.96
Double scale
Find fourth proportional to 387,343.72, 534,709.38 and 260,089.48
Similar ratio
Find fourth proportional to 581,014.08, 802,062 and 390,132.72
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.