Home / 390,050.10-584,200.35-320,066.10

Finding the Fourth Proportional to 390,050.10, 584,200.35 and 320,066.10

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Solution

The fourth proportional to 390,050.10, 584,200.35 and 320,066.10 is: 479,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,050.10 : 584,200.35 = 320,066.10 : x
  2. Step 2: Convert to fraction form
    390,050.10/584,200.35 = 320,066.10/x
  3. Step 3: Cross multiply
    390,050.10x = 584,200.35 × 320,066.10
  4. Step 4: Simplify right side
    390,050.10x = 186,982,727,643.14
  5. Step 5: Solve for x
    x = 186,982,727,643.14/390,050.10
  6. Step 6: Final answer
    x = 479,381.31

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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.