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Finding the Fourth Proportional to 622,281.40, 933,422.10 and 472,982.20

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Solution

The fourth proportional to 622,281.40, 933,422.10 and 472,982.20 is: 709,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,281.40 : 933,422.10 = 472,982.20 : x
  2. Step 2: Convert to fraction form
    622,281.40/933,422.10 = 472,982.20/x
  3. Step 3: Cross multiply
    622,281.40x = 933,422.10 × 472,982.20
  4. Step 4: Simplify right side
    622,281.40x = 441,492,038,386.62
  5. Step 5: Solve for x
    x = 441,492,038,386.62/622,281.40
  6. Step 6: Final answer
    x = 709,473.30

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Double scale
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Similar ratio
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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.