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Finding the Fourth Proportional to 646,097.16, 891,461.56 and 543,122.85

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Solution

The fourth proportional to 646,097.16, 891,461.56 and 543,122.85 is: 749,381.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,097.16 : 891,461.56 = 543,122.85 : x
  2. Step 2: Convert to fraction form
    646,097.16/891,461.56 = 543,122.85/x
  3. Step 3: Cross multiply
    646,097.16x = 891,461.56 × 543,122.85
  4. Step 4: Simplify right side
    646,097.16x = 484,173,143,132.65
  5. Step 5: Solve for x
    x = 484,173,143,132.65/646,097.16
  6. Step 6: Final answer
    x = 749,381.32

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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.