Home / 745,921.76-1,029,372.14-406,390.01

Finding the Fourth Proportional to 745,921.76, 1,029,372.14 and 406,390.01

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Solution

The fourth proportional to 745,921.76, 1,029,372.14 and 406,390.01 is: 560,818.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,921.76 : 1,029,372.14 = 406,390.01 : x
  2. Step 2: Convert to fraction form
    745,921.76/1,029,372.14 = 406,390.01/x
  3. Step 3: Cross multiply
    745,921.76x = 1,029,372.14 × 406,390.01
  4. Step 4: Simplify right side
    745,921.76x = 418,326,547,089.51
  5. Step 5: Solve for x
    x = 418,326,547,089.51/745,921.76
  6. Step 6: Final answer
    x = 560,818.27

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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.