Home / 818,652.48-1,226,947.32-438,630.72

Finding the Fourth Proportional to 818,652.48, 1,226,947.32 and 438,630.72

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Solution

The fourth proportional to 818,652.48, 1,226,947.32 and 438,630.72 is: 657,393.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,652.48 : 1,226,947.32 = 438,630.72 : x
  2. Step 2: Convert to fraction form
    818,652.48/1,226,947.32 = 438,630.72/x
  3. Step 3: Cross multiply
    818,652.48x = 1,226,947.32 × 438,630.72
  4. Step 4: Simplify right side
    818,652.48x = 538,176,786,373.67
  5. Step 5: Solve for x
    x = 538,176,786,373.67/818,652.48
  6. Step 6: Final answer
    x = 657,393.46

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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.