Home / 917,652.21-1,266,562.59-509,894.22

Finding the Fourth Proportional to 917,652.21, 1,266,562.59 and 509,894.22

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Solution

The fourth proportional to 917,652.21, 1,266,562.59 and 509,894.22 is: 703,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,652.21 : 1,266,562.59 = 509,894.22 : x
  2. Step 2: Convert to fraction form
    917,652.21/1,266,562.59 = 509,894.22/x
  3. Step 3: Cross multiply
    917,652.21x = 1,266,562.59 × 509,894.22
  4. Step 4: Simplify right side
    917,652.21x = 645,812,943,909.23
  5. Step 5: Solve for x
    x = 645,812,943,909.23/917,652.21
  6. Step 6: Final answer
    x = 703,766.57

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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.