Home / 1,238,432.17-1,857,914.88-385,485.70

Finding the Fourth Proportional to 1,238,432.17, 1,857,914.88 and 385,485.70

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Solution

The fourth proportional to 1,238,432.17, 1,857,914.88 and 385,485.70 is: 578,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,432.17 : 1,857,914.88 = 385,485.70 : x
  2. Step 2: Convert to fraction form
    1,238,432.17/1,857,914.88 = 385,485.70/x
  3. Step 3: Cross multiply
    1,238,432.17x = 1,857,914.88 × 385,485.70
  4. Step 4: Simplify right side
    1,238,432.17x = 716,199,618,057.22
  5. Step 5: Solve for x
    x = 716,199,618,057.22/1,238,432.17
  6. Step 6: Final answer
    x = 578,311.54

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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.