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Finding the Fourth Proportional to 610,894.72, 915,357.12 and 330,544

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Solution

The fourth proportional to 610,894.72, 915,357.12 and 330,544 is: 495,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,894.72 : 915,357.12 = 330,544 : x
  2. Step 2: Convert to fraction form
    610,894.72/915,357.12 = 330,544/x
  3. Step 3: Cross multiply
    610,894.72x = 915,357.12 × 330,544
  4. Step 4: Simplify right side
    610,894.72x = 302,565,803,873.28
  5. Step 5: Solve for x
    x = 302,565,803,873.28/610,894.72
  6. Step 6: Final answer
    x = 495,283.06

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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.