Home / 1,127,075.20-1,690,717.28-407,596.80

Finding the Fourth Proportional to 1,127,075.20, 1,690,717.28 and 407,596.80

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Solution

The fourth proportional to 1,127,075.20, 1,690,717.28 and 407,596.80 is: 611,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,075.20 : 1,690,717.28 = 407,596.80 : x
  2. Step 2: Convert to fraction form
    1,127,075.20/1,690,717.28 = 407,596.80/x
  3. Step 3: Cross multiply
    1,127,075.20x = 1,690,717.28 × 407,596.80
  4. Step 4: Simplify right side
    1,127,075.20x = 689,130,953,032.70
  5. Step 5: Solve for x
    x = 689,130,953,032.70/1,127,075.20
  6. Step 6: Final answer
    x = 611,432.98

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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.