Home / 917,716.74-1,266,465.69-515,323.14

Finding the Fourth Proportional to 917,716.74, 1,266,465.69 and 515,323.14

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Solution

The fourth proportional to 917,716.74, 1,266,465.69 and 515,323.14 is: 711,155.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,716.74 : 1,266,465.69 = 515,323.14 : x
  2. Step 2: Convert to fraction form
    917,716.74/1,266,465.69 = 515,323.14/x
  3. Step 3: Cross multiply
    917,716.74x = 1,266,465.69 × 515,323.14
  4. Step 4: Simplify right side
    917,716.74x = 652,639,076,073.07
  5. Step 5: Solve for x
    x = 652,639,076,073.07/917,716.74
  6. Step 6: Final answer
    x = 711,155.25

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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.