Home / 916,126.81-1,264,256.49-508,228.66

Finding the Fourth Proportional to 916,126.81, 1,264,256.49 and 508,228.66

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Solution

The fourth proportional to 916,126.81, 1,264,256.49 and 508,228.66 is: 701,356.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,126.81 : 1,264,256.49 = 508,228.66 : x
  2. Step 2: Convert to fraction form
    916,126.81/1,264,256.49 = 508,228.66/x
  3. Step 3: Cross multiply
    916,126.81x = 1,264,256.49 × 508,228.66
  4. Step 4: Simplify right side
    916,126.81x = 642,531,381,809.00
  5. Step 5: Solve for x
    x = 642,531,381,809.00/916,126.81
  6. Step 6: Final answer
    x = 701,356.38

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Double scale
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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.