Home / 724,148.80-1,084,927.20-349,345.60

Finding the Fourth Proportional to 724,148.80, 1,084,927.20 and 349,345.60

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Solution

The fourth proportional to 724,148.80, 1,084,927.20 and 349,345.60 is: 523,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,148.80 : 1,084,927.20 = 349,345.60 : x
  2. Step 2: Convert to fraction form
    724,148.80/1,084,927.20 = 349,345.60/x
  3. Step 3: Cross multiply
    724,148.80x = 1,084,927.20 × 349,345.60
  4. Step 4: Simplify right side
    724,148.80x = 379,014,543,640.32
  5. Step 5: Solve for x
    x = 379,014,543,640.32/724,148.80
  6. Step 6: Final answer
    x = 523,393.18

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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.