Home / 1,038,111.70-1,557,167.55-478,239.70

Finding the Fourth Proportional to 1,038,111.70, 1,557,167.55 and 478,239.70

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Solution

The fourth proportional to 1,038,111.70, 1,557,167.55 and 478,239.70 is: 717,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,111.70 : 1,557,167.55 = 478,239.70 : x
  2. Step 2: Convert to fraction form
    1,038,111.70/1,557,167.55 = 478,239.70/x
  3. Step 3: Cross multiply
    1,038,111.70x = 1,557,167.55 × 478,239.70
  4. Step 4: Simplify right side
    1,038,111.70x = 744,699,341,961.74
  5. Step 5: Solve for x
    x = 744,699,341,961.74/1,038,111.70
  6. Step 6: Final answer
    x = 717,359.55

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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.