Home / 768,644.44-1,153,666.40-409,117.20

Finding the Fourth Proportional to 768,644.44, 1,153,666.40 and 409,117.20

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Solution

The fourth proportional to 768,644.44, 1,153,666.40 and 409,117.20 is: 614,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,644.44 : 1,153,666.40 = 409,117.20 : x
  2. Step 2: Convert to fraction form
    768,644.44/1,153,666.40 = 409,117.20/x
  3. Step 3: Cross multiply
    768,644.44x = 1,153,666.40 × 409,117.20
  4. Step 4: Simplify right side
    768,644.44x = 471,984,767,302.08
  5. Step 5: Solve for x
    x = 471,984,767,302.08/768,644.44
  6. Step 6: Final answer
    x = 614,048.24

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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.