Home / 681,426.12-940,421.16-375,557.34

Finding the Fourth Proportional to 681,426.12, 940,421.16 and 375,557.34

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Solution

The fourth proportional to 681,426.12, 940,421.16 and 375,557.34 is: 518,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,426.12 : 940,421.16 = 375,557.34 : x
  2. Step 2: Convert to fraction form
    681,426.12/940,421.16 = 375,557.34/x
  3. Step 3: Cross multiply
    681,426.12x = 940,421.16 × 375,557.34
  4. Step 4: Simplify right side
    681,426.12x = 353,182,069,329.31
  5. Step 5: Solve for x
    x = 353,182,069,329.31/681,426.12
  6. Step 6: Final answer
    x = 518,298.40

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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.