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Finding the Fourth Proportional to 417,526.90, 626,283.02 and 289,324.96

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Solution

The fourth proportional to 417,526.90, 626,283.02 and 289,324.96 is: 433,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,526.90 : 626,283.02 = 289,324.96 : x
  2. Step 2: Convert to fraction form
    417,526.90/626,283.02 = 289,324.96/x
  3. Step 3: Cross multiply
    417,526.90x = 626,283.02 × 289,324.96
  4. Step 4: Simplify right side
    417,526.90x = 181,199,309,710.18
  5. Step 5: Solve for x
    x = 181,199,309,710.18/417,526.90
  6. Step 6: Final answer
    x = 433,982.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.