Home / 874,671.40-1,207,069.86-492,675.40

Finding the Fourth Proportional to 874,671.40, 1,207,069.86 and 492,675.40

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Solution

The fourth proportional to 874,671.40, 1,207,069.86 and 492,675.40 is: 679,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,671.40 : 1,207,069.86 = 492,675.40 : x
  2. Step 2: Convert to fraction form
    874,671.40/1,207,069.86 = 492,675.40/x
  3. Step 3: Cross multiply
    874,671.40x = 1,207,069.86 × 492,675.40
  4. Step 4: Simplify right side
    874,671.40x = 594,693,626,103.44
  5. Step 5: Solve for x
    x = 594,693,626,103.44/874,671.40
  6. Step 6: Final answer
    x = 679,905.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.