Home / 920,713.28-1,270,618.64-507,266.86

Finding the Fourth Proportional to 920,713.28, 1,270,618.64 and 507,266.86

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Solution

The fourth proportional to 920,713.28, 1,270,618.64 and 507,266.86 is: 700,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,713.28 : 1,270,618.64 = 507,266.86 : x
  2. Step 2: Convert to fraction form
    920,713.28/1,270,618.64 = 507,266.86/x
  3. Step 3: Cross multiply
    920,713.28x = 1,270,618.64 × 507,266.86
  4. Step 4: Simplify right side
    920,713.28x = 644,542,727,770.27
  5. Step 5: Solve for x
    x = 644,542,727,770.27/920,713.28
  6. Step 6: Final answer
    x = 700,047.17

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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.