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Finding the Fourth Proportional to 505,776.74, 753,298.55 and 503,332.30

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Solution

The fourth proportional to 505,776.74, 753,298.55 and 503,332.30 is: 749,657.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,776.74 : 753,298.55 = 503,332.30 : x
  2. Step 2: Convert to fraction form
    505,776.74/753,298.55 = 503,332.30/x
  3. Step 3: Cross multiply
    505,776.74x = 753,298.55 × 503,332.30
  4. Step 4: Simplify right side
    505,776.74x = 379,159,491,758.17
  5. Step 5: Solve for x
    x = 379,159,491,758.17/505,776.74
  6. Step 6: Final answer
    x = 749,657.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.