Home / 917,592.60-1,266,234.90-509,720.70

Finding the Fourth Proportional to 917,592.60, 1,266,234.90 and 509,720.70

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Solution

The fourth proportional to 917,592.60, 1,266,234.90 and 509,720.70 is: 703,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,592.60 : 1,266,234.90 = 509,720.70 : x
  2. Step 2: Convert to fraction form
    917,592.60/1,266,234.90 = 509,720.70/x
  3. Step 3: Cross multiply
    917,592.60x = 1,266,234.90 × 509,720.70
  4. Step 4: Simplify right side
    917,592.60x = 645,426,139,592.43
  5. Step 5: Solve for x
    x = 645,426,139,592.43/917,592.60
  6. Step 6: Final answer
    x = 703,390.74

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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.