Home / 671,954.40-1,007,931.60-620,632.80

Finding the Fourth Proportional to 671,954.40, 1,007,931.60 and 620,632.80

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Solution

The fourth proportional to 671,954.40, 1,007,931.60 and 620,632.80 is: 930,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,954.40 : 1,007,931.60 = 620,632.80 : x
  2. Step 2: Convert to fraction form
    671,954.40/1,007,931.60 = 620,632.80/x
  3. Step 3: Cross multiply
    671,954.40x = 1,007,931.60 × 620,632.80
  4. Step 4: Simplify right side
    671,954.40x = 625,555,411,116.48
  5. Step 5: Solve for x
    x = 625,555,411,116.48/671,954.40
  6. Step 6: Final answer
    x = 930,949.20

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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.