Home / 656,075.20-984,501.60-432,077.80

Finding the Fourth Proportional to 656,075.20, 984,501.60 and 432,077.80

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Solution

The fourth proportional to 656,075.20, 984,501.60 and 432,077.80 is: 648,372.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,075.20 : 984,501.60 = 432,077.80 : x
  2. Step 2: Convert to fraction form
    656,075.20/984,501.60 = 432,077.80/x
  3. Step 3: Cross multiply
    656,075.20x = 984,501.60 × 432,077.80
  4. Step 4: Simplify right side
    656,075.20x = 425,381,285,424.48
  5. Step 5: Solve for x
    x = 425,381,285,424.48/656,075.20
  6. Step 6: Final answer
    x = 648,372.76

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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.