Home / 917,372.17-1,266,005.06-509,480.47

Finding the Fourth Proportional to 917,372.17, 1,266,005.06 and 509,480.47

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Solution

The fourth proportional to 917,372.17, 1,266,005.06 and 509,480.47 is: 703,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,372.17 : 1,266,005.06 = 509,480.47 : x
  2. Step 2: Convert to fraction form
    917,372.17/1,266,005.06 = 509,480.47/x
  3. Step 3: Cross multiply
    917,372.17x = 1,266,005.06 × 509,480.47
  4. Step 4: Simplify right side
    917,372.17x = 645,004,852,991.18
  5. Step 5: Solve for x
    x = 645,004,852,991.18/917,372.17
  6. Step 6: Final answer
    x = 703,100.52

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1.5x scale

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.