Home / 867,117.60-1,300,652.10-393,802.20

Finding the Fourth Proportional to 867,117.60, 1,300,652.10 and 393,802.20

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Solution

The fourth proportional to 867,117.60, 1,300,652.10 and 393,802.20 is: 590,692.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,117.60 : 1,300,652.10 = 393,802.20 : x
  2. Step 2: Convert to fraction form
    867,117.60/1,300,652.10 = 393,802.20/x
  3. Step 3: Cross multiply
    867,117.60x = 1,300,652.10 × 393,802.20
  4. Step 4: Simplify right side
    867,117.60x = 512,199,658,414.62
  5. Step 5: Solve for x
    x = 512,199,658,414.62/867,117.60
  6. Step 6: Final answer
    x = 590,692.26

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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.