Home / 571,064.42-787,774.10-387,240.83

Finding the Fourth Proportional to 571,064.42, 787,774.10 and 387,240.83

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Solution

The fourth proportional to 571,064.42, 787,774.10 and 387,240.83 is: 534,192.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,064.42 : 787,774.10 = 387,240.83 : x
  2. Step 2: Convert to fraction form
    571,064.42/787,774.10 = 387,240.83/x
  3. Step 3: Cross multiply
    571,064.42x = 787,774.10 × 387,240.83
  4. Step 4: Simplify right side
    571,064.42x = 305,058,294,400.30
  5. Step 5: Solve for x
    x = 305,058,294,400.30/571,064.42
  6. Step 6: Final answer
    x = 534,192.44

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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.