Home / 900,616.95-1,242,846.90-492,711.39

Finding the Fourth Proportional to 900,616.95, 1,242,846.90 and 492,711.39

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Solution

The fourth proportional to 900,616.95, 1,242,846.90 and 492,711.39 is: 679,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,616.95 : 1,242,846.90 = 492,711.39 : x
  2. Step 2: Convert to fraction form
    900,616.95/1,242,846.90 = 492,711.39/x
  3. Step 3: Cross multiply
    900,616.95x = 1,242,846.90 × 492,711.39
  4. Step 4: Simplify right side
    900,616.95x = 612,364,823,656.19
  5. Step 5: Solve for x
    x = 612,364,823,656.19/900,616.95
  6. Step 6: Final answer
    x = 679,939.26

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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.