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Finding the Fourth Proportional to 660,088.90, 910,629.61 and 430,593.32

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Solution

The fourth proportional to 660,088.90, 910,629.61 and 430,593.32 is: 594,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,088.90 : 910,629.61 = 430,593.32 : x
  2. Step 2: Convert to fraction form
    660,088.90/910,629.61 = 430,593.32/x
  3. Step 3: Cross multiply
    660,088.90x = 910,629.61 × 430,593.32
  4. Step 4: Simplify right side
    660,088.90x = 392,111,027,060.21
  5. Step 5: Solve for x
    x = 392,111,027,060.21/660,088.90
  6. Step 6: Final answer
    x = 594,027.60

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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.