Home / 578,800.10-867,908.55-342,215.30

Finding the Fourth Proportional to 578,800.10, 867,908.55 and 342,215.30

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Solution

The fourth proportional to 578,800.10, 867,908.55 and 342,215.30 is: 513,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,800.10 : 867,908.55 = 342,215.30 : x
  2. Step 2: Convert to fraction form
    578,800.10/867,908.55 = 342,215.30/x
  3. Step 3: Cross multiply
    578,800.10x = 867,908.55 × 342,215.30
  4. Step 4: Simplify right side
    578,800.10x = 297,011,584,810.82
  5. Step 5: Solve for x
    x = 297,011,584,810.82/578,800.10
  6. Step 6: Final answer
    x = 513,150.54

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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.