Home / 910,439.02-1,256,398.92-502,540.81

Finding the Fourth Proportional to 910,439.02, 1,256,398.92 and 502,540.81

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Solution

The fourth proportional to 910,439.02, 1,256,398.92 and 502,540.81 is: 693,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,439.02 : 1,256,398.92 = 502,540.81 : x
  2. Step 2: Convert to fraction form
    910,439.02/1,256,398.92 = 502,540.81/x
  3. Step 3: Cross multiply
    910,439.02x = 1,256,398.92 × 502,540.81
  4. Step 4: Simplify right side
    910,439.02x = 631,391,730,939.93
  5. Step 5: Solve for x
    x = 631,391,730,939.93/910,439.02
  6. Step 6: Final answer
    x = 693,502.49

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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.