Home / 910,620-1,256,565.78-502,695.36

Finding the Fourth Proportional to 910,620, 1,256,565.78 and 502,695.36

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Solution

The fourth proportional to 910,620, 1,256,565.78 and 502,695.36 is: 693,670.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,620 : 1,256,565.78 = 502,695.36 : x
  2. Step 2: Convert to fraction form
    910,620/1,256,565.78 = 502,695.36/x
  3. Step 3: Cross multiply
    910,620x = 1,256,565.78 × 502,695.36
  4. Step 4: Simplify right side
    910,620x = 631,669,787,140.78
  5. Step 5: Solve for x
    x = 631,669,787,140.78/910,620
  6. Step 6: Final answer
    x = 693,670.01

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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.