Home / 712,835.80-1,068,918.90-413,401.48

Finding the Fourth Proportional to 712,835.80, 1,068,918.90 and 413,401.48

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Solution

The fourth proportional to 712,835.80, 1,068,918.90 and 413,401.48 is: 619,908.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,835.80 : 1,068,918.90 = 413,401.48 : x
  2. Step 2: Convert to fraction form
    712,835.80/1,068,918.90 = 413,401.48/x
  3. Step 3: Cross multiply
    712,835.80x = 1,068,918.90 × 413,401.48
  4. Step 4: Simplify right side
    712,835.80x = 441,892,655,259.97
  5. Step 5: Solve for x
    x = 441,892,655,259.97/712,835.80
  6. Step 6: Final answer
    x = 619,908.06

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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.