Home / 679,459.59-1,019,976.71-364,531.59

Finding the Fourth Proportional to 679,459.59, 1,019,976.71 and 364,531.59

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Solution

The fourth proportional to 679,459.59, 1,019,976.71 and 364,531.59 is: 547,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,459.59 : 1,019,976.71 = 364,531.59 : x
  2. Step 2: Convert to fraction form
    679,459.59/1,019,976.71 = 364,531.59/x
  3. Step 3: Cross multiply
    679,459.59x = 1,019,976.71 × 364,531.59
  4. Step 4: Simplify right side
    679,459.59x = 371,813,730,036.61
  5. Step 5: Solve for x
    x = 371,813,730,036.61/679,459.59
  6. Step 6: Final answer
    x = 547,219.78

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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.