Home / 974,443.40-1,461,665.10-638,520.20

Finding the Fourth Proportional to 974,443.40, 1,461,665.10 and 638,520.20

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Solution

The fourth proportional to 974,443.40, 1,461,665.10 and 638,520.20 is: 957,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,443.40 : 1,461,665.10 = 638,520.20 : x
  2. Step 2: Convert to fraction form
    974,443.40/1,461,665.10 = 638,520.20/x
  3. Step 3: Cross multiply
    974,443.40x = 1,461,665.10 × 638,520.20
  4. Step 4: Simplify right side
    974,443.40x = 933,302,691,985.02
  5. Step 5: Solve for x
    x = 933,302,691,985.02/974,443.40
  6. Step 6: Final answer
    x = 957,780.30

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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.