Home / 745,802.64-1,029,207.60-406,271.16

Finding the Fourth Proportional to 745,802.64, 1,029,207.60 and 406,271.16

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Solution

The fourth proportional to 745,802.64, 1,029,207.60 and 406,271.16 is: 560,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,802.64 : 1,029,207.60 = 406,271.16 : x
  2. Step 2: Convert to fraction form
    745,802.64/1,029,207.60 = 406,271.16/x
  3. Step 3: Cross multiply
    745,802.64x = 1,029,207.60 × 406,271.16
  4. Step 4: Simplify right side
    745,802.64x = 418,137,365,532.82
  5. Step 5: Solve for x
    x = 418,137,365,532.82/745,802.64
  6. Step 6: Final answer
    x = 560,654.18

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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.