Home / 920,734.90-1,270,174.08-715,380.46

Finding the Fourth Proportional to 920,734.90, 1,270,174.08 and 715,380.46

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Solution

The fourth proportional to 920,734.90, 1,270,174.08 and 715,380.46 is: 986,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,734.90 : 1,270,174.08 = 715,380.46 : x
  2. Step 2: Convert to fraction form
    920,734.90/1,270,174.08 = 715,380.46/x
  3. Step 3: Cross multiply
    920,734.90x = 1,270,174.08 × 715,380.46
  4. Step 4: Simplify right side
    920,734.90x = 908,657,717,630.48
  5. Step 5: Solve for x
    x = 908,657,717,630.48/920,734.90
  6. Step 6: Final answer
    x = 986,883.11

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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.