Home / 739,342.95-1,019,905.39-642,328.83

Finding the Fourth Proportional to 739,342.95, 1,019,905.39 and 642,328.83

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Solution

The fourth proportional to 739,342.95, 1,019,905.39 and 642,328.83 is: 886,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,342.95 : 1,019,905.39 = 642,328.83 : x
  2. Step 2: Convert to fraction form
    739,342.95/1,019,905.39 = 642,328.83/x
  3. Step 3: Cross multiply
    739,342.95x = 1,019,905.39 × 642,328.83
  4. Step 4: Simplify right side
    739,342.95x = 655,114,630,769.87
  5. Step 5: Solve for x
    x = 655,114,630,769.87/739,342.95
  6. Step 6: Final answer
    x = 886,076.80

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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.