Home / 1,241,623.60-1,862,435.40-442,931.20

Finding the Fourth Proportional to 1,241,623.60, 1,862,435.40 and 442,931.20

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Solution

The fourth proportional to 1,241,623.60, 1,862,435.40 and 442,931.20 is: 664,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,623.60 : 1,862,435.40 = 442,931.20 : x
  2. Step 2: Convert to fraction form
    1,241,623.60/1,862,435.40 = 442,931.20/x
  3. Step 3: Cross multiply
    1,241,623.60x = 1,862,435.40 × 442,931.20
  4. Step 4: Simplify right side
    1,241,623.60x = 824,930,746,644.48
  5. Step 5: Solve for x
    x = 824,930,746,644.48/1,241,623.60
  6. Step 6: Final answer
    x = 664,396.80

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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.