Home / 913,720-1,370,580-248,872

Finding the Fourth Proportional to 913,720, 1,370,580 and 248,872

Calculator

Solution

The fourth proportional to 913,720, 1,370,580 and 248,872 is: 373,308

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,720 : 1,370,580 = 248,872 : x
  2. Step 2: Convert to fraction form
    913,720/1,370,580 = 248,872/x
  3. Step 3: Cross multiply
    913,720x = 1,370,580 × 248,872
  4. Step 4: Simplify right side
    913,720x = 341,098,985,760
  5. Step 5: Solve for x
    x = 341,098,985,760/913,720
  6. Step 6: Final answer
    x = 373,308

Related Problems

Find fourth proportional to 456,860, 685,290 and 124,436
Half scale
Find fourth proportional to 1,827,440, 2,741,160 and 497,744
Double scale
Find fourth proportional to 913,721, 1,370,581.50 and 248,873
Similar ratio
Find fourth proportional to 1,370,580, 2,055,870 and 373,308
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.