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Finding the Fourth Proportional to 559,463.80, 772,068.90 and 304,814.92

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Solution

The fourth proportional to 559,463.80, 772,068.90 and 304,814.92 is: 420,649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,463.80 : 772,068.90 = 304,814.92 : x
  2. Step 2: Convert to fraction form
    559,463.80/772,068.90 = 304,814.92/x
  3. Step 3: Cross multiply
    559,463.80x = 772,068.90 × 304,814.92
  4. Step 4: Simplify right side
    559,463.80x = 235,338,119,987.99
  5. Step 5: Solve for x
    x = 235,338,119,987.99/559,463.80
  6. Step 6: Final answer
    x = 420,649.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.