Home / 870,225.70-1,200,987.46-507,766.33

Finding the Fourth Proportional to 870,225.70, 1,200,987.46 and 507,766.33

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Solution

The fourth proportional to 870,225.70, 1,200,987.46 and 507,766.33 is: 700,761.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,225.70 : 1,200,987.46 = 507,766.33 : x
  2. Step 2: Convert to fraction form
    870,225.70/1,200,987.46 = 507,766.33/x
  3. Step 3: Cross multiply
    870,225.70x = 1,200,987.46 × 507,766.33
  4. Step 4: Simplify right side
    870,225.70x = 609,820,990,668.34
  5. Step 5: Solve for x
    x = 609,820,990,668.34/870,225.70
  6. Step 6: Final answer
    x = 700,761.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.