Home / 999,041.20-1,378,803.12-655,166.50

Finding the Fourth Proportional to 999,041.20, 1,378,803.12 and 655,166.50

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Solution

The fourth proportional to 999,041.20, 1,378,803.12 and 655,166.50 is: 904,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,041.20 : 1,378,803.12 = 655,166.50 : x
  2. Step 2: Convert to fraction form
    999,041.20/1,378,803.12 = 655,166.50/x
  3. Step 3: Cross multiply
    999,041.20x = 1,378,803.12 × 655,166.50
  4. Step 4: Simplify right side
    999,041.20x = 903,345,614,319.48
  5. Step 5: Solve for x
    x = 903,345,614,319.48/999,041.20
  6. Step 6: Final answer
    x = 904,212.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.