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Finding the Fourth Proportional to 546,075.40, 819,113.10 and 386,643.10

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Solution

The fourth proportional to 546,075.40, 819,113.10 and 386,643.10 is: 579,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,075.40 : 819,113.10 = 386,643.10 : x
  2. Step 2: Convert to fraction form
    546,075.40/819,113.10 = 386,643.10/x
  3. Step 3: Cross multiply
    546,075.40x = 819,113.10 × 386,643.10
  4. Step 4: Simplify right side
    546,075.40x = 316,704,428,234.61
  5. Step 5: Solve for x
    x = 316,704,428,234.61/546,075.40
  6. Step 6: Final answer
    x = 579,964.65

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Double scale
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Similar ratio
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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.