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Finding the Fourth Proportional to 586,728.36, 809,657.12 and 360,330.12

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Solution

The fourth proportional to 586,728.36, 809,657.12 and 360,330.12 is: 497,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,728.36 : 809,657.12 = 360,330.12 : x
  2. Step 2: Convert to fraction form
    586,728.36/809,657.12 = 360,330.12/x
  3. Step 3: Cross multiply
    586,728.36x = 809,657.12 × 360,330.12
  4. Step 4: Simplify right side
    586,728.36x = 291,743,847,208.45
  5. Step 5: Solve for x
    x = 291,743,847,208.45/586,728.36
  6. Step 6: Final answer
    x = 497,238.36

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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.