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Finding the Fourth Proportional to 510,681.81, 704,582.15 and 289,882.29

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Solution

The fourth proportional to 510,681.81, 704,582.15 and 289,882.29 is: 399,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,681.81 : 704,582.15 = 289,882.29 : x
  2. Step 2: Convert to fraction form
    510,681.81/704,582.15 = 289,882.29/x
  3. Step 3: Cross multiply
    510,681.81x = 704,582.15 × 289,882.29
  4. Step 4: Simplify right side
    510,681.81x = 204,245,888,327.90
  5. Step 5: Solve for x
    x = 204,245,888,327.90/510,681.81
  6. Step 6: Final answer
    x = 399,947.45

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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.