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Finding the Fourth Proportional to 389,424.28, 580,699.01 and 375,547.63

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Solution

The fourth proportional to 389,424.28, 580,699.01 and 375,547.63 is: 560,006.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,424.28 : 580,699.01 = 375,547.63 : x
  2. Step 2: Convert to fraction form
    389,424.28/580,699.01 = 375,547.63/x
  3. Step 3: Cross multiply
    389,424.28x = 580,699.01 × 375,547.63
  4. Step 4: Simplify right side
    389,424.28x = 218,080,136,948.85
  5. Step 5: Solve for x
    x = 218,080,136,948.85/389,424.28
  6. Step 6: Final answer
    x = 560,006.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.