Home / 547,000.32-754,858.80-305,280.24

Finding the Fourth Proportional to 547,000.32, 754,858.80 and 305,280.24

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Solution

The fourth proportional to 547,000.32, 754,858.80 and 305,280.24 is: 421,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,000.32 : 754,858.80 = 305,280.24 : x
  2. Step 2: Convert to fraction form
    547,000.32/754,858.80 = 305,280.24/x
  3. Step 3: Cross multiply
    547,000.32x = 754,858.80 × 305,280.24
  4. Step 4: Simplify right side
    547,000.32x = 230,443,475,630.11
  5. Step 5: Solve for x
    x = 230,443,475,630.11/547,000.32
  6. Step 6: Final answer
    x = 421,285.82

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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.