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Finding the Fourth Proportional to 622,897.30, 934,345.95 and 307,969.30

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Solution

The fourth proportional to 622,897.30, 934,345.95 and 307,969.30 is: 461,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,897.30 : 934,345.95 = 307,969.30 : x
  2. Step 2: Convert to fraction form
    622,897.30/934,345.95 = 307,969.30/x
  3. Step 3: Cross multiply
    622,897.30x = 934,345.95 × 307,969.30
  4. Step 4: Simplify right side
    622,897.30x = 287,749,868,179.34
  5. Step 5: Solve for x
    x = 287,749,868,179.34/622,897.30
  6. Step 6: Final answer
    x = 461,953.95

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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.