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Finding the Fourth Proportional to 711,402, 982,248.84 and 439,842.24

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Solution

The fourth proportional to 711,402, 982,248.84 and 439,842.24 is: 607,300.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,402 : 982,248.84 = 439,842.24 : x
  2. Step 2: Convert to fraction form
    711,402/982,248.84 = 439,842.24/x
  3. Step 3: Cross multiply
    711,402x = 982,248.84 × 439,842.24
  4. Step 4: Simplify right side
    711,402x = 432,034,530,023.00
  5. Step 5: Solve for x
    x = 432,034,530,023.00/711,402
  6. Step 6: Final answer
    x = 607,300.13

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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.