Home / 1,200,470.76-1,656,702.72-691,337.16

Finding the Fourth Proportional to 1,200,470.76, 1,656,702.72 and 691,337.16

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Solution

The fourth proportional to 1,200,470.76, 1,656,702.72 and 691,337.16 is: 954,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,470.76 : 1,656,702.72 = 691,337.16 : x
  2. Step 2: Convert to fraction form
    1,200,470.76/1,656,702.72 = 691,337.16/x
  3. Step 3: Cross multiply
    1,200,470.76x = 1,656,702.72 × 691,337.16
  4. Step 4: Simplify right side
    1,200,470.76x = 1,145,340,153,409.08
  5. Step 5: Solve for x
    x = 1,145,340,153,409.08/1,200,470.76
  6. Step 6: Final answer
    x = 954,075.84

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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.