Home / 745,606.40-1,028,948.56-406,074.38

Finding the Fourth Proportional to 745,606.40, 1,028,948.56 and 406,074.38

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Solution

The fourth proportional to 745,606.40, 1,028,948.56 and 406,074.38 is: 560,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,606.40 : 1,028,948.56 = 406,074.38 : x
  2. Step 2: Convert to fraction form
    745,606.40/1,028,948.56 = 406,074.38/x
  3. Step 3: Cross multiply
    745,606.40x = 1,028,948.56 × 406,074.38
  4. Step 4: Simplify right side
    745,606.40x = 417,829,648,553.89
  5. Step 5: Solve for x
    x = 417,829,648,553.89/745,606.40
  6. Step 6: Final answer
    x = 560,389.03

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.