Home / 1,430,502.80-2,147,136.60-870,630.80

Finding the Fourth Proportional to 1,430,502.80, 2,147,136.60 and 870,630.80

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Solution

The fourth proportional to 1,430,502.80, 2,147,136.60 and 870,630.80 is: 1,306,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,502.80 : 2,147,136.60 = 870,630.80 : x
  2. Step 2: Convert to fraction form
    1,430,502.80/2,147,136.60 = 870,630.80/x
  3. Step 3: Cross multiply
    1,430,502.80x = 2,147,136.60 × 870,630.80
  4. Step 4: Simplify right side
    1,430,502.80x = 1,869,363,255,767.28
  5. Step 5: Solve for x
    x = 1,869,363,255,767.28/1,430,502.80
  6. Step 6: Final answer
    x = 1,306,787.55

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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.