Home / 917,357.52-1,265,995.40-509,461.17

Finding the Fourth Proportional to 917,357.52, 1,265,995.40 and 509,461.17

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Solution

The fourth proportional to 917,357.52, 1,265,995.40 and 509,461.17 is: 703,079.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,357.52 : 1,265,995.40 = 509,461.17 : x
  2. Step 2: Convert to fraction form
    917,357.52/1,265,995.40 = 509,461.17/x
  3. Step 3: Cross multiply
    917,357.52x = 1,265,995.40 × 509,461.17
  4. Step 4: Simplify right side
    917,357.52x = 644,975,497,698.62
  5. Step 5: Solve for x
    x = 644,975,497,698.62/917,357.52
  6. Step 6: Final answer
    x = 703,079.75

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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.