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Finding the Fourth Proportional to 554,637.71, 765,397.53 and 299,988.29

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Solution

The fourth proportional to 554,637.71, 765,397.53 and 299,988.29 is: 413,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,637.71 : 765,397.53 = 299,988.29 : x
  2. Step 2: Convert to fraction form
    554,637.71/765,397.53 = 299,988.29/x
  3. Step 3: Cross multiply
    554,637.71x = 765,397.53 × 299,988.29
  4. Step 4: Simplify right side
    554,637.71x = 229,610,292,367.94
  5. Step 5: Solve for x
    x = 229,610,292,367.94/554,637.71
  6. Step 6: Final answer
    x = 413,982.48

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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.