Home / 607,945.42-839,080.38-400,849.48

Finding the Fourth Proportional to 607,945.42, 839,080.38 and 400,849.48

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Solution

The fourth proportional to 607,945.42, 839,080.38 and 400,849.48 is: 553,248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,945.42 : 839,080.38 = 400,849.48 : x
  2. Step 2: Convert to fraction form
    607,945.42/839,080.38 = 400,849.48/x
  3. Step 3: Cross multiply
    607,945.42x = 839,080.38 × 400,849.48
  4. Step 4: Simplify right side
    607,945.42x = 336,344,934,001.20
  5. Step 5: Solve for x
    x = 336,344,934,001.20/607,945.42
  6. Step 6: Final answer
    x = 553,248.57

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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.