Home / 753,404.48-1,039,971.12-498,837.68

Finding the Fourth Proportional to 753,404.48, 1,039,971.12 and 498,837.68

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Solution

The fourth proportional to 753,404.48, 1,039,971.12 and 498,837.68 is: 688,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,404.48 : 1,039,971.12 = 498,837.68 : x
  2. Step 2: Convert to fraction form
    753,404.48/1,039,971.12 = 498,837.68/x
  3. Step 3: Cross multiply
    753,404.48x = 1,039,971.12 × 498,837.68
  4. Step 4: Simplify right side
    753,404.48x = 518,776,780,767.80
  5. Step 5: Solve for x
    x = 518,776,780,767.80/753,404.48
  6. Step 6: Final answer
    x = 688,576.71

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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.