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Finding the Fourth Proportional to 778,908.70, 1,168,472.40 and 246,374.20

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Solution

The fourth proportional to 778,908.70, 1,168,472.40 and 246,374.20 is: 369,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,908.70 : 1,168,472.40 = 246,374.20 : x
  2. Step 2: Convert to fraction form
    778,908.70/1,168,472.40 = 246,374.20/x
  3. Step 3: Cross multiply
    778,908.70x = 1,168,472.40 × 246,374.20
  4. Step 4: Simplify right side
    778,908.70x = 287,881,452,772.08
  5. Step 5: Solve for x
    x = 287,881,452,772.08/778,908.70
  6. Step 6: Final answer
    x = 369,595.89

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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.