Home / 920,723.50-1,270,158.34-715,369.06

Finding the Fourth Proportional to 920,723.50, 1,270,158.34 and 715,369.06

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Solution

The fourth proportional to 920,723.50, 1,270,158.34 and 715,369.06 is: 986,867.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,723.50 : 1,270,158.34 = 715,369.06 : x
  2. Step 2: Convert to fraction form
    920,723.50/1,270,158.34 = 715,369.06/x
  3. Step 3: Cross multiply
    920,723.50x = 1,270,158.34 × 715,369.06
  4. Step 4: Simplify right side
    920,723.50x = 908,631,977,736.96
  5. Step 5: Solve for x
    x = 908,631,977,736.96/920,723.50
  6. Step 6: Final answer
    x = 986,867.37

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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.