Home / 1,107,452.34-1,528,622.02-642,423.74

Finding the Fourth Proportional to 1,107,452.34, 1,528,622.02 and 642,423.74

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Solution

The fourth proportional to 1,107,452.34, 1,528,622.02 and 642,423.74 is: 886,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,452.34 : 1,528,622.02 = 642,423.74 : x
  2. Step 2: Convert to fraction form
    1,107,452.34/1,528,622.02 = 642,423.74/x
  3. Step 3: Cross multiply
    1,107,452.34x = 1,528,622.02 × 642,423.74
  4. Step 4: Simplify right side
    1,107,452.34x = 982,023,075,134.76
  5. Step 5: Solve for x
    x = 982,023,075,134.76/1,107,452.34
  6. Step 6: Final answer
    x = 886,740.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.