Home / 753,417.48-1,039,989.12-498,850.68

Finding the Fourth Proportional to 753,417.48, 1,039,989.12 and 498,850.68

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Solution

The fourth proportional to 753,417.48, 1,039,989.12 and 498,850.68 is: 688,594.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,417.48 : 1,039,989.12 = 498,850.68 : x
  2. Step 2: Convert to fraction form
    753,417.48/1,039,989.12 = 498,850.68/x
  3. Step 3: Cross multiply
    753,417.48x = 1,039,989.12 × 498,850.68
  4. Step 4: Simplify right side
    753,417.48x = 518,799,279,704.60
  5. Step 5: Solve for x
    x = 518,799,279,704.60/753,417.48
  6. Step 6: Final answer
    x = 688,594.69

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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.