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Finding the Fourth Proportional to 546,885.69, 820,616.57 and 280,646.22

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Solution

The fourth proportional to 546,885.69, 820,616.57 and 280,646.22 is: 421,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,885.69 : 820,616.57 = 280,646.22 : x
  2. Step 2: Convert to fraction form
    546,885.69/820,616.57 = 280,646.22/x
  3. Step 3: Cross multiply
    546,885.69x = 820,616.57 × 280,646.22
  4. Step 4: Simplify right side
    546,885.69x = 230,302,937,036.63
  5. Step 5: Solve for x
    x = 230,302,937,036.63/546,885.69
  6. Step 6: Final answer
    x = 421,117.14

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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.