Home / 649,619.80-974,429.70-369,683.80

Finding the Fourth Proportional to 649,619.80, 974,429.70 and 369,683.80

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Solution

The fourth proportional to 649,619.80, 974,429.70 and 369,683.80 is: 554,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,619.80 : 974,429.70 = 369,683.80 : x
  2. Step 2: Convert to fraction form
    649,619.80/974,429.70 = 369,683.80/x
  3. Step 3: Cross multiply
    649,619.80x = 974,429.70 × 369,683.80
  4. Step 4: Simplify right side
    649,619.80x = 360,230,874,328.86
  5. Step 5: Solve for x
    x = 360,230,874,328.86/649,619.80
  6. Step 6: Final answer
    x = 554,525.70

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Similar ratio
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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.