Home / 692,136.30-1,038,204.45-407,534.70

Finding the Fourth Proportional to 692,136.30, 1,038,204.45 and 407,534.70

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Solution

The fourth proportional to 692,136.30, 1,038,204.45 and 407,534.70 is: 611,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,136.30 : 1,038,204.45 = 407,534.70 : x
  2. Step 2: Convert to fraction form
    692,136.30/1,038,204.45 = 407,534.70/x
  3. Step 3: Cross multiply
    692,136.30x = 1,038,204.45 × 407,534.70
  4. Step 4: Simplify right side
    692,136.30x = 423,104,339,069.42
  5. Step 5: Solve for x
    x = 423,104,339,069.42/692,136.30
  6. Step 6: Final answer
    x = 611,302.05

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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.