Home / 817,680.80-1,224,188.40-724,368.80

Finding the Fourth Proportional to 817,680.80, 1,224,188.40 and 724,368.80

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Solution

The fourth proportional to 817,680.80, 1,224,188.40 and 724,368.80 is: 1,084,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,680.80 : 1,224,188.40 = 724,368.80 : x
  2. Step 2: Convert to fraction form
    817,680.80/1,224,188.40 = 724,368.80/x
  3. Step 3: Cross multiply
    817,680.80x = 1,224,188.40 × 724,368.80
  4. Step 4: Simplify right side
    817,680.80x = 886,763,882,281.92
  5. Step 5: Solve for x
    x = 886,763,882,281.92/817,680.80
  6. Step 6: Final answer
    x = 1,084,486.61

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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.