Home / 974,642.60-1,461,745.20-640,031.60

Finding the Fourth Proportional to 974,642.60, 1,461,745.20 and 640,031.60

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Solution

The fourth proportional to 974,642.60, 1,461,745.20 and 640,031.60 is: 959,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,642.60 : 1,461,745.20 = 640,031.60 : x
  2. Step 2: Convert to fraction form
    974,642.60/1,461,745.20 = 640,031.60/x
  3. Step 3: Cross multiply
    974,642.60x = 1,461,745.20 × 640,031.60
  4. Step 4: Simplify right side
    974,642.60x = 935,563,119,148.32
  5. Step 5: Solve for x
    x = 935,563,119,148.32/974,642.60
  6. Step 6: Final answer
    x = 959,903.78

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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.