Home / 778,899.70-1,168,677.60-424,168.30

Finding the Fourth Proportional to 778,899.70, 1,168,677.60 and 424,168.30

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Solution

The fourth proportional to 778,899.70, 1,168,677.60 and 424,168.30 is: 636,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,899.70 : 1,168,677.60 = 424,168.30 : x
  2. Step 2: Convert to fraction form
    778,899.70/1,168,677.60 = 424,168.30/x
  3. Step 3: Cross multiply
    778,899.70x = 1,168,677.60 × 424,168.30
  4. Step 4: Simplify right side
    778,899.70x = 495,715,990,840.08
  5. Step 5: Solve for x
    x = 495,715,990,840.08/778,899.70
  6. Step 6: Final answer
    x = 636,431.10

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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.