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Finding the Fourth Proportional to 554,932.30, 832,398.45 and 289,211.80

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Solution

The fourth proportional to 554,932.30, 832,398.45 and 289,211.80 is: 433,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,932.30 : 832,398.45 = 289,211.80 : x
  2. Step 2: Convert to fraction form
    554,932.30/832,398.45 = 289,211.80/x
  3. Step 3: Cross multiply
    554,932.30x = 832,398.45 × 289,211.80
  4. Step 4: Simplify right side
    554,932.30x = 240,739,454,041.71
  5. Step 5: Solve for x
    x = 240,739,454,041.71/554,932.30
  6. Step 6: Final answer
    x = 433,817.70

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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.