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Finding the Fourth Proportional to 550,440.16, 759,607.16 and 320,953.12

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Solution

The fourth proportional to 550,440.16, 759,607.16 and 320,953.12 is: 442,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,440.16 : 759,607.16 = 320,953.12 : x
  2. Step 2: Convert to fraction form
    550,440.16/759,607.16 = 320,953.12/x
  3. Step 3: Cross multiply
    550,440.16x = 759,607.16 × 320,953.12
  4. Step 4: Simplify right side
    550,440.16x = 243,798,287,976.34
  5. Step 5: Solve for x
    x = 243,798,287,976.34/550,440.16
  6. Step 6: Final answer
    x = 442,915.15

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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.