Home / 692,079.10-1,038,118.65-678,082.30

Finding the Fourth Proportional to 692,079.10, 1,038,118.65 and 678,082.30

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Solution

The fourth proportional to 692,079.10, 1,038,118.65 and 678,082.30 is: 1,017,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,079.10 : 1,038,118.65 = 678,082.30 : x
  2. Step 2: Convert to fraction form
    692,079.10/1,038,118.65 = 678,082.30/x
  3. Step 3: Cross multiply
    692,079.10x = 1,038,118.65 × 678,082.30
  4. Step 4: Simplify right side
    692,079.10x = 703,929,881,864.90
  5. Step 5: Solve for x
    x = 703,929,881,864.90/692,079.10
  6. Step 6: Final answer
    x = 1,017,123.45

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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.