Home / 662,784.92-914,762.26-390,836.52

Finding the Fourth Proportional to 662,784.92, 914,762.26 and 390,836.52

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Solution

The fourth proportional to 662,784.92, 914,762.26 and 390,836.52 is: 539,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,784.92 : 914,762.26 = 390,836.52 : x
  2. Step 2: Convert to fraction form
    662,784.92/914,762.26 = 390,836.52/x
  3. Step 3: Cross multiply
    662,784.92x = 914,762.26 × 390,836.52
  4. Step 4: Simplify right side
    662,784.92x = 357,522,498,325.74
  5. Step 5: Solve for x
    x = 357,522,498,325.74/662,784.92
  6. Step 6: Final answer
    x = 539,424.61

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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.