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Finding the Fourth Proportional to 439,077.80, 657,632.55 and 360,345.80

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Solution

The fourth proportional to 439,077.80, 657,632.55 and 360,345.80 is: 539,711.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,077.80 : 657,632.55 = 360,345.80 : x
  2. Step 2: Convert to fraction form
    439,077.80/657,632.55 = 360,345.80/x
  3. Step 3: Cross multiply
    439,077.80x = 657,632.55 × 360,345.80
  4. Step 4: Simplify right side
    439,077.80x = 236,975,127,335.79
  5. Step 5: Solve for x
    x = 236,975,127,335.79/439,077.80
  6. Step 6: Final answer
    x = 539,711.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.