Home / 671,712.60-1,007,568.90-519,497.40

Finding the Fourth Proportional to 671,712.60, 1,007,568.90 and 519,497.40

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Solution

The fourth proportional to 671,712.60, 1,007,568.90 and 519,497.40 is: 779,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,712.60 : 1,007,568.90 = 519,497.40 : x
  2. Step 2: Convert to fraction form
    671,712.60/1,007,568.90 = 519,497.40/x
  3. Step 3: Cross multiply
    671,712.60x = 1,007,568.90 × 519,497.40
  4. Step 4: Simplify right side
    671,712.60x = 523,429,423,870.86
  5. Step 5: Solve for x
    x = 523,429,423,870.86/671,712.60
  6. Step 6: Final answer
    x = 779,246.10

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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.