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Finding the Fourth Proportional to 555,038.80, 832,558.20 and 289,318.30

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Solution

The fourth proportional to 555,038.80, 832,558.20 and 289,318.30 is: 433,977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,038.80 : 832,558.20 = 289,318.30 : x
  2. Step 2: Convert to fraction form
    555,038.80/832,558.20 = 289,318.30/x
  3. Step 3: Cross multiply
    555,038.80x = 832,558.20 × 289,318.30
  4. Step 4: Simplify right side
    555,038.80x = 240,874,323,075.06
  5. Step 5: Solve for x
    x = 240,874,323,075.06/555,038.80
  6. Step 6: Final answer
    x = 433,977.45

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Similar ratio
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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.