Home / 917,356.52-1,265,994.02-509,460.17

Finding the Fourth Proportional to 917,356.52, 1,265,994.02 and 509,460.17

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Solution

The fourth proportional to 917,356.52, 1,265,994.02 and 509,460.17 is: 703,078.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,356.52 : 1,265,994.02 = 509,460.17 : x
  2. Step 2: Convert to fraction form
    917,356.52/1,265,994.02 = 509,460.17/x
  3. Step 3: Cross multiply
    917,356.52x = 1,265,994.02 × 509,460.17
  4. Step 4: Simplify right side
    917,356.52x = 644,973,523,591.86
  5. Step 5: Solve for x
    x = 644,973,523,591.86/917,356.52
  6. Step 6: Final answer
    x = 703,078.36

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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.