Home / 679,569.59-1,017,135.79-499,607.53

Finding the Fourth Proportional to 679,569.59, 1,017,135.79 and 499,607.53

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Solution

The fourth proportional to 679,569.59, 1,017,135.79 and 499,607.53 is: 747,780.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,569.59 : 1,017,135.79 = 499,607.53 : x
  2. Step 2: Convert to fraction form
    679,569.59/1,017,135.79 = 499,607.53/x
  3. Step 3: Cross multiply
    679,569.59x = 1,017,135.79 × 499,607.53
  4. Step 4: Simplify right side
    679,569.59x = 508,168,699,716.50
  5. Step 5: Solve for x
    x = 508,168,699,716.50/679,569.59
  6. Step 6: Final answer
    x = 747,780.22

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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.