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Finding the Fourth Proportional to 556,162.28, 767,543.28 and 314,447.20

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Solution

The fourth proportional to 556,162.28, 767,543.28 and 314,447.20 is: 433,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,162.28 : 767,543.28 = 314,447.20 : x
  2. Step 2: Convert to fraction form
    556,162.28/767,543.28 = 314,447.20/x
  3. Step 3: Cross multiply
    556,162.28x = 767,543.28 × 314,447.20
  4. Step 4: Simplify right side
    556,162.28x = 241,351,835,274.82
  5. Step 5: Solve for x
    x = 241,351,835,274.82/556,162.28
  6. Step 6: Final answer
    x = 433,959.37

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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.