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Finding the Fourth Proportional to 615,980.70, 923,279.85 and 349,868.70

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Solution

The fourth proportional to 615,980.70, 923,279.85 and 349,868.70 is: 524,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,980.70 : 923,279.85 = 349,868.70 : x
  2. Step 2: Convert to fraction form
    615,980.70/923,279.85 = 349,868.70/x
  3. Step 3: Cross multiply
    615,980.70x = 923,279.85 × 349,868.70
  4. Step 4: Simplify right side
    615,980.70x = 323,026,720,855.70
  5. Step 5: Solve for x
    x = 323,026,720,855.70/615,980.70
  6. Step 6: Final answer
    x = 524,410.46

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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.