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Finding the Fourth Proportional to 660,087.90, 910,628.23 and 430,592.32

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Solution

The fourth proportional to 660,087.90, 910,628.23 and 430,592.32 is: 594,026.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,087.90 : 910,628.23 = 430,592.32 : x
  2. Step 2: Convert to fraction form
    660,087.90/910,628.23 = 430,592.32/x
  3. Step 3: Cross multiply
    660,087.90x = 910,628.23 × 430,592.32
  4. Step 4: Simplify right side
    660,087.90x = 392,109,522,213.19
  5. Step 5: Solve for x
    x = 392,109,522,213.19/660,087.90
  6. Step 6: Final answer
    x = 594,026.22

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1.5x scale

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.