Home / 778,972.79-1,168,447.05-399,674.63

Finding the Fourth Proportional to 778,972.79, 1,168,447.05 and 399,674.63

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Solution

The fourth proportional to 778,972.79, 1,168,447.05 and 399,674.63 is: 599,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,972.79 : 1,168,447.05 = 399,674.63 : x
  2. Step 2: Convert to fraction form
    778,972.79/1,168,447.05 = 399,674.63/x
  3. Step 3: Cross multiply
    778,972.79x = 1,168,447.05 × 399,674.63
  4. Step 4: Simplify right side
    778,972.79x = 466,998,636,541.11
  5. Step 5: Solve for x
    x = 466,998,636,541.11/778,972.79
  6. Step 6: Final answer
    x = 599,505.72

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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.