Home / 900,725.59-1,242,990.66-492,822.69

Finding the Fourth Proportional to 900,725.59, 1,242,990.66 and 492,822.69

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Solution

The fourth proportional to 900,725.59, 1,242,990.66 and 492,822.69 is: 680,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,725.59 : 1,242,990.66 = 492,822.69 : x
  2. Step 2: Convert to fraction form
    900,725.59/1,242,990.66 = 492,822.69/x
  3. Step 3: Cross multiply
    900,725.59x = 1,242,990.66 × 492,822.69
  4. Step 4: Simplify right side
    900,725.59x = 612,574,000,706.08
  5. Step 5: Solve for x
    x = 612,574,000,706.08/900,725.59
  6. Step 6: Final answer
    x = 680,089.48

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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.