Home / 658,319.84-908,462.76-390,047.84

Finding the Fourth Proportional to 658,319.84, 908,462.76 and 390,047.84

Calculator

Solution

The fourth proportional to 658,319.84, 908,462.76 and 390,047.84 is: 538,254.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,319.84 : 908,462.76 = 390,047.84 : x
  2. Step 2: Convert to fraction form
    658,319.84/908,462.76 = 390,047.84/x
  3. Step 3: Cross multiply
    658,319.84x = 908,462.76 × 390,047.84
  4. Step 4: Simplify right side
    658,319.84x = 354,343,937,258.44
  5. Step 5: Solve for x
    x = 354,343,937,258.44/658,319.84
  6. Step 6: Final answer
    x = 538,254.99

Related Problems

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.