Home / 689,362.98-1,034,226.72-315,298.50

Finding the Fourth Proportional to 689,362.98, 1,034,226.72 and 315,298.50

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Solution

The fourth proportional to 689,362.98, 1,034,226.72 and 315,298.50 is: 473,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,362.98 : 1,034,226.72 = 315,298.50 : x
  2. Step 2: Convert to fraction form
    689,362.98/1,034,226.72 = 315,298.50/x
  3. Step 3: Cross multiply
    689,362.98x = 1,034,226.72 × 315,298.50
  4. Step 4: Simplify right side
    689,362.98x = 326,090,133,475.92
  5. Step 5: Solve for x
    x = 326,090,133,475.92/689,362.98
  6. Step 6: Final answer
    x = 473,031.11

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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.