Home / 910,071.26-1,255,896.85-502,172.78

Finding the Fourth Proportional to 910,071.26, 1,255,896.85 and 502,172.78

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Solution

The fourth proportional to 910,071.26, 1,255,896.85 and 502,172.78 is: 692,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,071.26 : 1,255,896.85 = 502,172.78 : x
  2. Step 2: Convert to fraction form
    910,071.26/1,255,896.85 = 502,172.78/x
  3. Step 3: Cross multiply
    910,071.26x = 1,255,896.85 × 502,172.78
  4. Step 4: Simplify right side
    910,071.26x = 630,677,212,557.74
  5. Step 5: Solve for x
    x = 630,677,212,557.74/910,071.26
  6. Step 6: Final answer
    x = 692,997.61

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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.