Home / 738,887.06-1,108,377.34-312,343.40

Finding the Fourth Proportional to 738,887.06, 1,108,377.34 and 312,343.40

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Solution

The fourth proportional to 738,887.06, 1,108,377.34 and 312,343.40 is: 468,534.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,887.06 : 1,108,377.34 = 312,343.40 : x
  2. Step 2: Convert to fraction form
    738,887.06/1,108,377.34 = 312,343.40/x
  3. Step 3: Cross multiply
    738,887.06x = 1,108,377.34 × 312,343.40
  4. Step 4: Simplify right side
    738,887.06x = 346,194,348,848.64
  5. Step 5: Solve for x
    x = 346,194,348,848.64/738,887.06
  6. Step 6: Final answer
    x = 468,534.86

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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.