Home / 745,606.90-1,028,949.24-406,074.88

Finding the Fourth Proportional to 745,606.90, 1,028,949.24 and 406,074.88

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Solution

The fourth proportional to 745,606.90, 1,028,949.24 and 406,074.88 is: 560,389.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,606.90 : 1,028,949.24 = 406,074.88 : x
  2. Step 2: Convert to fraction form
    745,606.90/1,028,949.24 = 406,074.88/x
  3. Step 3: Cross multiply
    745,606.90x = 1,028,949.24 × 406,074.88
  4. Step 4: Simplify right side
    745,606.90x = 417,830,439,159.09
  5. Step 5: Solve for x
    x = 417,830,439,159.09/745,606.90
  6. Step 6: Final answer
    x = 560,389.72

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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.