Home / 910,419.89-1,256,379.54-502,521.83

Finding the Fourth Proportional to 910,419.89, 1,256,379.54 and 502,521.83

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Solution

The fourth proportional to 910,419.89, 1,256,379.54 and 502,521.83 is: 693,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,419.89 : 1,256,379.54 = 502,521.83 : x
  2. Step 2: Convert to fraction form
    910,419.89/1,256,379.54 = 502,521.83/x
  3. Step 3: Cross multiply
    910,419.89x = 1,256,379.54 × 502,521.83
  4. Step 4: Simplify right side
    910,419.89x = 631,358,145,615.36
  5. Step 5: Solve for x
    x = 631,358,145,615.36/910,419.89
  6. Step 6: Final answer
    x = 693,480.18

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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.