Home / 553,267.38-763,501.46-311,552.85

Finding the Fourth Proportional to 553,267.38, 763,501.46 and 311,552.85

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Solution

The fourth proportional to 553,267.38, 763,501.46 and 311,552.85 is: 429,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,267.38 : 763,501.46 = 311,552.85 : x
  2. Step 2: Convert to fraction form
    553,267.38/763,501.46 = 311,552.85/x
  3. Step 3: Cross multiply
    553,267.38x = 763,501.46 × 311,552.85
  4. Step 4: Simplify right side
    553,267.38x = 237,871,054,284.40
  5. Step 5: Solve for x
    x = 237,871,054,284.40/553,267.38
  6. Step 6: Final answer
    x = 429,938.69

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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.