Home / 671,937.40-1,006,739.70-435,158.20

Finding the Fourth Proportional to 671,937.40, 1,006,739.70 and 435,158.20

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Solution

The fourth proportional to 671,937.40, 1,006,739.70 and 435,158.20 is: 651,981.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,937.40 : 1,006,739.70 = 435,158.20 : x
  2. Step 2: Convert to fraction form
    671,937.40/1,006,739.70 = 435,158.20/x
  3. Step 3: Cross multiply
    671,937.40x = 1,006,739.70 × 435,158.20
  4. Step 4: Simplify right side
    671,937.40x = 438,091,035,720.54
  5. Step 5: Solve for x
    x = 438,091,035,720.54/671,937.40
  6. Step 6: Final answer
    x = 651,981.92

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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.