Home / 711,565.40-1,064,723.70-648,579.80

Finding the Fourth Proportional to 711,565.40, 1,064,723.70 and 648,579.80

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Solution

The fourth proportional to 711,565.40, 1,064,723.70 and 648,579.80 is: 970,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,565.40 : 1,064,723.70 = 648,579.80 : x
  2. Step 2: Convert to fraction form
    711,565.40/1,064,723.70 = 648,579.80/x
  3. Step 3: Cross multiply
    711,565.40x = 1,064,723.70 × 648,579.80
  4. Step 4: Simplify right side
    711,565.40x = 690,558,284,401.26
  5. Step 5: Solve for x
    x = 690,558,284,401.26/711,565.40
  6. Step 6: Final answer
    x = 970,477.60

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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.