Home / 1,105,128.75-1,657,693.50-497,207.08

Finding the Fourth Proportional to 1,105,128.75, 1,657,693.50 and 497,207.08

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Solution

The fourth proportional to 1,105,128.75, 1,657,693.50 and 497,207.08 is: 745,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,128.75 : 1,657,693.50 = 497,207.08 : x
  2. Step 2: Convert to fraction form
    1,105,128.75/1,657,693.50 = 497,207.08/x
  3. Step 3: Cross multiply
    1,105,128.75x = 1,657,693.50 × 497,207.08
  4. Step 4: Simplify right side
    1,105,128.75x = 824,216,938,349.83
  5. Step 5: Solve for x
    x = 824,216,938,349.83/1,105,128.75
  6. Step 6: Final answer
    x = 745,810.78

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Double scale
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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.