Home / 637,977.60-956,966.40-449,020.80

Finding the Fourth Proportional to 637,977.60, 956,966.40 and 449,020.80

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Solution

The fourth proportional to 637,977.60, 956,966.40 and 449,020.80 is: 673,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,977.60 : 956,966.40 = 449,020.80 : x
  2. Step 2: Convert to fraction form
    637,977.60/956,966.40 = 449,020.80/x
  3. Step 3: Cross multiply
    637,977.60x = 956,966.40 × 449,020.80
  4. Step 4: Simplify right side
    637,977.60x = 429,697,818,501.12
  5. Step 5: Solve for x
    x = 429,697,818,501.12/637,977.60
  6. Step 6: Final answer
    x = 673,531.20

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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.