Home / 900,087.67-1,242,117.85-507,589.43

Finding the Fourth Proportional to 900,087.67, 1,242,117.85 and 507,589.43

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Solution

The fourth proportional to 900,087.67, 1,242,117.85 and 507,589.43 is: 700,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,087.67 : 1,242,117.85 = 507,589.43 : x
  2. Step 2: Convert to fraction form
    900,087.67/1,242,117.85 = 507,589.43/x
  3. Step 3: Cross multiply
    900,087.67x = 1,242,117.85 × 507,589.43
  4. Step 4: Simplify right side
    900,087.67x = 630,485,891,474.33
  5. Step 5: Solve for x
    x = 630,485,891,474.33/900,087.67
  6. Step 6: Final answer
    x = 700,471.65

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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.