Home / 1,238,750.60-1,857,665.10-490,641.80

Finding the Fourth Proportional to 1,238,750.60, 1,857,665.10 and 490,641.80

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Solution

The fourth proportional to 1,238,750.60, 1,857,665.10 and 490,641.80 is: 735,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,750.60 : 1,857,665.10 = 490,641.80 : x
  2. Step 2: Convert to fraction form
    1,238,750.60/1,857,665.10 = 490,641.80/x
  3. Step 3: Cross multiply
    1,238,750.60x = 1,857,665.10 × 490,641.80
  4. Step 4: Simplify right side
    1,238,750.60x = 911,448,148,461.18
  5. Step 5: Solve for x
    x = 911,448,148,461.18/1,238,750.60
  6. Step 6: Final answer
    x = 735,780.19

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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.