Home / 990,901.28-1,368,010.32-652,353.68

Finding the Fourth Proportional to 990,901.28, 1,368,010.32 and 652,353.68

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Solution

The fourth proportional to 990,901.28, 1,368,010.32 and 652,353.68 is: 900,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,901.28 : 1,368,010.32 = 652,353.68 : x
  2. Step 2: Convert to fraction form
    990,901.28/1,368,010.32 = 652,353.68/x
  3. Step 3: Cross multiply
    990,901.28x = 1,368,010.32 × 652,353.68
  4. Step 4: Simplify right side
    990,901.28x = 892,426,566,529.98
  5. Step 5: Solve for x
    x = 892,426,566,529.98/990,901.28
  6. Step 6: Final answer
    x = 900,621.07

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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.