Home / 916,637.56-1,264,940.81-508,715.71

Finding the Fourth Proportional to 916,637.56, 1,264,940.81 and 508,715.71

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Solution

The fourth proportional to 916,637.56, 1,264,940.81 and 508,715.71 is: 702,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,637.56 : 1,264,940.81 = 508,715.71 : x
  2. Step 2: Convert to fraction form
    916,637.56/1,264,940.81 = 508,715.71/x
  3. Step 3: Cross multiply
    916,637.56x = 1,264,940.81 × 508,715.71
  4. Step 4: Simplify right side
    916,637.56x = 643,495,259,723.55
  5. Step 5: Solve for x
    x = 643,495,259,723.55/916,637.56
  6. Step 6: Final answer
    x = 702,017.12

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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.