Home / 687,593.80-1,031,682.30-435,068.20

Finding the Fourth Proportional to 687,593.80, 1,031,682.30 and 435,068.20

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Solution

The fourth proportional to 687,593.80, 1,031,682.30 and 435,068.20 is: 652,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,593.80 : 1,031,682.30 = 435,068.20 : x
  2. Step 2: Convert to fraction form
    687,593.80/1,031,682.30 = 435,068.20/x
  3. Step 3: Cross multiply
    687,593.80x = 1,031,682.30 × 435,068.20
  4. Step 4: Simplify right side
    687,593.80x = 448,852,161,232.86
  5. Step 5: Solve for x
    x = 448,852,161,232.86/687,593.80
  6. Step 6: Final answer
    x = 652,786.81

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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.