Home / 916,479.28-1,264,738.68-508,642.56

Finding the Fourth Proportional to 916,479.28, 1,264,738.68 and 508,642.56

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Solution

The fourth proportional to 916,479.28, 1,264,738.68 and 508,642.56 is: 701,925.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,479.28 : 1,264,738.68 = 508,642.56 : x
  2. Step 2: Convert to fraction form
    916,479.28/1,264,738.68 = 508,642.56/x
  3. Step 3: Cross multiply
    916,479.28x = 1,264,738.68 × 508,642.56
  4. Step 4: Simplify right side
    916,479.28x = 643,299,919,926.22
  5. Step 5: Solve for x
    x = 643,299,919,926.22/916,479.28
  6. Step 6: Final answer
    x = 701,925.22

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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.