Home / 920,963.99-1,270,931.01-513,066.78

Finding the Fourth Proportional to 920,963.99, 1,270,931.01 and 513,066.78

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Solution

The fourth proportional to 920,963.99, 1,270,931.01 and 513,066.78 is: 708,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,963.99 : 1,270,931.01 = 513,066.78 : x
  2. Step 2: Convert to fraction form
    920,963.99/1,270,931.01 = 513,066.78/x
  3. Step 3: Cross multiply
    920,963.99x = 1,270,931.01 × 513,066.78
  4. Step 4: Simplify right side
    920,963.99x = 652,072,480,902.85
  5. Step 5: Solve for x
    x = 652,072,480,902.85/920,963.99
  6. Step 6: Final answer
    x = 708,032.55

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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.