Home / 578,747.10-867,829.05-342,162.30

Finding the Fourth Proportional to 578,747.10, 867,829.05 and 342,162.30

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Solution

The fourth proportional to 578,747.10, 867,829.05 and 342,162.30 is: 513,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,747.10 : 867,829.05 = 342,162.30 : x
  2. Step 2: Convert to fraction form
    578,747.10/867,829.05 = 342,162.30/x
  3. Step 3: Cross multiply
    578,747.10x = 867,829.05 × 342,162.30
  4. Step 4: Simplify right side
    578,747.10x = 296,938,383,754.82
  5. Step 5: Solve for x
    x = 296,938,383,754.82/578,747.10
  6. Step 6: Final answer
    x = 513,071.05

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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.