Home / 440,703.90-661,056.07-290,909.18

Finding the Fourth Proportional to 440,703.90, 661,056.07 and 290,909.18

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Solution

The fourth proportional to 440,703.90, 661,056.07 and 290,909.18 is: 436,363.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,703.90 : 661,056.07 = 290,909.18 : x
  2. Step 2: Convert to fraction form
    440,703.90/661,056.07 = 290,909.18/x
  3. Step 3: Cross multiply
    440,703.90x = 661,056.07 × 290,909.18
  4. Step 4: Simplify right side
    440,703.90x = 192,307,281,637.64
  5. Step 5: Solve for x
    x = 192,307,281,637.64/440,703.90
  6. Step 6: Final answer
    x = 436,363.92

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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.