Home / 910,100.13-1,255,889.12-502,122.03

Finding the Fourth Proportional to 910,100.13, 1,255,889.12 and 502,122.03

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Solution

The fourth proportional to 910,100.13, 1,255,889.12 and 502,122.03 is: 692,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,100.13 : 1,255,889.12 = 502,122.03 : x
  2. Step 2: Convert to fraction form
    910,100.13/1,255,889.12 = 502,122.03/x
  3. Step 3: Cross multiply
    910,100.13x = 1,255,889.12 × 502,122.03
  4. Step 4: Simplify right side
    910,100.13x = 630,609,591,878.70
  5. Step 5: Solve for x
    x = 630,609,591,878.70/910,100.13
  6. Step 6: Final answer
    x = 692,901.33

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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.