Home / 739,342.45-1,019,904.70-642,328.32

Finding the Fourth Proportional to 739,342.45, 1,019,904.70 and 642,328.32

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Solution

The fourth proportional to 739,342.45, 1,019,904.70 and 642,328.32 is: 886,076.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,342.45 : 1,019,904.70 = 642,328.32 : x
  2. Step 2: Convert to fraction form
    739,342.45/1,019,904.70 = 642,328.32/x
  3. Step 3: Cross multiply
    739,342.45x = 1,019,904.70 × 642,328.32
  4. Step 4: Simplify right side
    739,342.45x = 655,113,675,863.78
  5. Step 5: Solve for x
    x = 655,113,675,863.78/739,342.45
  6. Step 6: Final answer
    x = 886,076.11

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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.