Home / 997,639.97-1,496,681.28-287,612.60

Finding the Fourth Proportional to 997,639.97, 1,496,681.28 and 287,612.60

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Solution

The fourth proportional to 997,639.97, 1,496,681.28 and 287,612.60 is: 431,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,639.97 : 1,496,681.28 = 287,612.60 : x
  2. Step 2: Convert to fraction form
    997,639.97/1,496,681.28 = 287,612.60/x
  3. Step 3: Cross multiply
    997,639.97x = 1,496,681.28 × 287,612.60
  4. Step 4: Simplify right side
    997,639.97x = 430,464,386,828.72
  5. Step 5: Solve for x
    x = 430,464,386,828.72/997,639.97
  6. Step 6: Final answer
    x = 431,482.70

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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.