Home / 723,870.12-1,085,459.52-424,441.88

Finding the Fourth Proportional to 723,870.12, 1,085,459.52 and 424,441.88

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Solution

The fourth proportional to 723,870.12, 1,085,459.52 and 424,441.88 is: 636,460.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,870.12 : 1,085,459.52 = 424,441.88 : x
  2. Step 2: Convert to fraction form
    723,870.12/1,085,459.52 = 424,441.88/x
  3. Step 3: Cross multiply
    723,870.12x = 1,085,459.52 × 424,441.88
  4. Step 4: Simplify right side
    723,870.12x = 460,714,479,332.70
  5. Step 5: Solve for x
    x = 460,714,479,332.70/723,870.12
  6. Step 6: Final answer
    x = 636,460.14

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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.