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Finding the Fourth Proportional to 662,905.30, 994,703.55 and 288,966.10

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Solution

The fourth proportional to 662,905.30, 994,703.55 and 288,966.10 is: 433,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,905.30 : 994,703.55 = 288,966.10 : x
  2. Step 2: Convert to fraction form
    662,905.30/994,703.55 = 288,966.10/x
  3. Step 3: Cross multiply
    662,905.30x = 994,703.55 × 288,966.10
  4. Step 4: Simplify right side
    662,905.30x = 287,435,605,499.66
  5. Step 5: Solve for x
    x = 287,435,605,499.66/662,905.30
  6. Step 6: Final answer
    x = 433,599.80

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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.