Home / 917,269.84-1,265,808.20-509,359.12

Finding the Fourth Proportional to 917,269.84, 1,265,808.20 and 509,359.12

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Solution

The fourth proportional to 917,269.84, 1,265,808.20 and 509,359.12 is: 702,902.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,269.84 : 1,265,808.20 = 509,359.12 : x
  2. Step 2: Convert to fraction form
    917,269.84/1,265,808.20 = 509,359.12/x
  3. Step 3: Cross multiply
    917,269.84x = 1,265,808.20 × 509,359.12
  4. Step 4: Simplify right side
    917,269.84x = 644,750,950,840.78
  5. Step 5: Solve for x
    x = 644,750,950,840.78/917,269.84
  6. Step 6: Final answer
    x = 702,902.16

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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.