Home / 910,868.10-1,366,302.15-279,699.90

Finding the Fourth Proportional to 910,868.10, 1,366,302.15 and 279,699.90

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Solution

The fourth proportional to 910,868.10, 1,366,302.15 and 279,699.90 is: 419,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,868.10 : 1,366,302.15 = 279,699.90 : x
  2. Step 2: Convert to fraction form
    910,868.10/1,366,302.15 = 279,699.90/x
  3. Step 3: Cross multiply
    910,868.10x = 1,366,302.15 × 279,699.90
  4. Step 4: Simplify right side
    910,868.10x = 382,154,574,724.79
  5. Step 5: Solve for x
    x = 382,154,574,724.79/910,868.10
  6. Step 6: Final answer
    x = 419,549.85

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Double scale
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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.