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Finding the Fourth Proportional to 662,088.64, 913,699.92 and 375,651.52

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Solution

The fourth proportional to 662,088.64, 913,699.92 and 375,651.52 is: 518,409.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,088.64 : 913,699.92 = 375,651.52 : x
  2. Step 2: Convert to fraction form
    662,088.64/913,699.92 = 375,651.52/x
  3. Step 3: Cross multiply
    662,088.64x = 913,699.92 × 375,651.52
  4. Step 4: Simplify right side
    662,088.64x = 343,232,763,771.88
  5. Step 5: Solve for x
    x = 343,232,763,771.88/662,088.64
  6. Step 6: Final answer
    x = 518,409.08

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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.