Home / 769,528.80-1,154,118.24-369,920.16

Finding the Fourth Proportional to 769,528.80, 1,154,118.24 and 369,920.16

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Solution

The fourth proportional to 769,528.80, 1,154,118.24 and 369,920.16 is: 554,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,528.80 : 1,154,118.24 = 369,920.16 : x
  2. Step 2: Convert to fraction form
    769,528.80/1,154,118.24 = 369,920.16/x
  3. Step 3: Cross multiply
    769,528.80x = 1,154,118.24 × 369,920.16
  4. Step 4: Simplify right side
    769,528.80x = 426,931,603,999.72
  5. Step 5: Solve for x
    x = 426,931,603,999.72/769,528.80
  6. Step 6: Final answer
    x = 554,796.13

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1.5x scale

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.