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Finding the Fourth Proportional to 677,148.53, 934,459 and 371,219.35

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Solution

The fourth proportional to 677,148.53, 934,459 and 371,219.35 is: 512,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,148.53 : 934,459 = 371,219.35 : x
  2. Step 2: Convert to fraction form
    677,148.53/934,459 = 371,219.35/x
  3. Step 3: Cross multiply
    677,148.53x = 934,459 × 371,219.35
  4. Step 4: Simplify right side
    677,148.53x = 346,889,262,581.65
  5. Step 5: Solve for x
    x = 346,889,262,581.65/677,148.53
  6. Step 6: Final answer
    x = 512,279.43

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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.