Home / 917,741.65-1,266,686.05-509,983.70

Finding the Fourth Proportional to 917,741.65, 1,266,686.05 and 509,983.70

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Solution

The fourth proportional to 917,741.65, 1,266,686.05 and 509,983.70 is: 703,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,741.65 : 1,266,686.05 = 509,983.70 : x
  2. Step 2: Convert to fraction form
    917,741.65/1,266,686.05 = 509,983.70/x
  3. Step 3: Cross multiply
    917,741.65x = 1,266,686.05 × 509,983.70
  4. Step 4: Simplify right side
    917,741.65x = 645,989,235,057.58
  5. Step 5: Solve for x
    x = 645,989,235,057.58/917,741.65
  6. Step 6: Final answer
    x = 703,890.07

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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.