Home / 547,845.23-756,101.52-315,267.40

Finding the Fourth Proportional to 547,845.23, 756,101.52 and 315,267.40

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Solution

The fourth proportional to 547,845.23, 756,101.52 and 315,267.40 is: 435,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,845.23 : 756,101.52 = 315,267.40 : x
  2. Step 2: Convert to fraction form
    547,845.23/756,101.52 = 315,267.40/x
  3. Step 3: Cross multiply
    547,845.23x = 756,101.52 × 315,267.40
  4. Step 4: Simplify right side
    547,845.23x = 238,374,160,346.45
  5. Step 5: Solve for x
    x = 238,374,160,346.45/547,845.23
  6. Step 6: Final answer
    x = 435,112.23

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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.