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Finding the Fourth Proportional to 554,927.70, 832,391.55 and 289,207.20

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Solution

The fourth proportional to 554,927.70, 832,391.55 and 289,207.20 is: 433,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,927.70 : 832,391.55 = 289,207.20 : x
  2. Step 2: Convert to fraction form
    554,927.70/832,391.55 = 289,207.20/x
  3. Step 3: Cross multiply
    554,927.70x = 832,391.55 × 289,207.20
  4. Step 4: Simplify right side
    554,927.70x = 240,733,629,479.16
  5. Step 5: Solve for x
    x = 240,733,629,479.16/554,927.70
  6. Step 6: Final answer
    x = 433,810.80

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Similar ratio
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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.