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Finding the Fourth Proportional to 579,969.80, 869,954.70 and 556,641.80

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Solution

The fourth proportional to 579,969.80, 869,954.70 and 556,641.80 is: 834,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,969.80 : 869,954.70 = 556,641.80 : x
  2. Step 2: Convert to fraction form
    579,969.80/869,954.70 = 556,641.80/x
  3. Step 3: Cross multiply
    579,969.80x = 869,954.70 × 556,641.80
  4. Step 4: Simplify right side
    579,969.80x = 484,253,150,126.46
  5. Step 5: Solve for x
    x = 484,253,150,126.46/579,969.80
  6. Step 6: Final answer
    x = 834,962.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.