Home / 854,125.45-1,178,646.86-472,127.63

Finding the Fourth Proportional to 854,125.45, 1,178,646.86 and 472,127.63

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Solution

The fourth proportional to 854,125.45, 1,178,646.86 and 472,127.63 is: 651,510.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,125.45 : 1,178,646.86 = 472,127.63 : x
  2. Step 2: Convert to fraction form
    854,125.45/1,178,646.86 = 472,127.63/x
  3. Step 3: Cross multiply
    854,125.45x = 1,178,646.86 × 472,127.63
  4. Step 4: Simplify right side
    854,125.45x = 556,471,743,905.83
  5. Step 5: Solve for x
    x = 556,471,743,905.83/854,125.45
  6. Step 6: Final answer
    x = 651,510.55

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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.