Home / 765,705.16-1,145,671.96-456,814.92

Finding the Fourth Proportional to 765,705.16, 1,145,671.96 and 456,814.92

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Solution

The fourth proportional to 765,705.16, 1,145,671.96 and 456,814.92 is: 683,500.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,705.16 : 1,145,671.96 = 456,814.92 : x
  2. Step 2: Convert to fraction form
    765,705.16/1,145,671.96 = 456,814.92/x
  3. Step 3: Cross multiply
    765,705.16x = 1,145,671.96 × 456,814.92
  4. Step 4: Simplify right side
    765,705.16x = 523,360,044,753.64
  5. Step 5: Solve for x
    x = 523,360,044,753.64/765,705.16
  6. Step 6: Final answer
    x = 683,500.74

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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.