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Finding the Fourth Proportional to 758,699, 1,047,003.84 and 436,400.80

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Solution

The fourth proportional to 758,699, 1,047,003.84 and 436,400.80 is: 602,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,699 : 1,047,003.84 = 436,400.80 : x
  2. Step 2: Convert to fraction form
    758,699/1,047,003.84 = 436,400.80/x
  3. Step 3: Cross multiply
    758,699x = 1,047,003.84 × 436,400.80
  4. Step 4: Simplify right side
    758,699x = 456,913,313,379.07
  5. Step 5: Solve for x
    x = 456,913,313,379.07/758,699
  6. Step 6: Final answer
    x = 602,232.66

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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.