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Finding the Fourth Proportional to 643,802.20, 965,703.30 and 583,667.80

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Solution

The fourth proportional to 643,802.20, 965,703.30 and 583,667.80 is: 875,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,802.20 : 965,703.30 = 583,667.80 : x
  2. Step 2: Convert to fraction form
    643,802.20/965,703.30 = 583,667.80/x
  3. Step 3: Cross multiply
    643,802.20x = 965,703.30 × 583,667.80
  4. Step 4: Simplify right side
    643,802.20x = 563,649,920,563.74
  5. Step 5: Solve for x
    x = 563,649,920,563.74/643,802.20
  6. Step 6: Final answer
    x = 875,501.70

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Similar ratio
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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.