Home / 880,711.10-1,321,066.65-455,558.30

Finding the Fourth Proportional to 880,711.10, 1,321,066.65 and 455,558.30

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Solution

The fourth proportional to 880,711.10, 1,321,066.65 and 455,558.30 is: 683,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,711.10 : 1,321,066.65 = 455,558.30 : x
  2. Step 2: Convert to fraction form
    880,711.10/1,321,066.65 = 455,558.30/x
  3. Step 3: Cross multiply
    880,711.10x = 1,321,066.65 × 455,558.30
  4. Step 4: Simplify right side
    880,711.10x = 601,822,877,260.70
  5. Step 5: Solve for x
    x = 601,822,877,260.70/880,711.10
  6. Step 6: Final answer
    x = 683,337.45

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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.