Home / 690,279.72-1,035,073.11-402,184.62

Finding the Fourth Proportional to 690,279.72, 1,035,073.11 and 402,184.62

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Solution

The fourth proportional to 690,279.72, 1,035,073.11 and 402,184.62 is: 603,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,279.72 : 1,035,073.11 = 402,184.62 : x
  2. Step 2: Convert to fraction form
    690,279.72/1,035,073.11 = 402,184.62/x
  3. Step 3: Cross multiply
    690,279.72x = 1,035,073.11 × 402,184.62
  4. Step 4: Simplify right side
    690,279.72x = 416,290,480,621.19
  5. Step 5: Solve for x
    x = 416,290,480,621.19/690,279.72
  6. Step 6: Final answer
    x = 603,075.05

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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.