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Finding the Fourth Proportional to 710,784.54, 1,066,019.54 and 205,235.78

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Solution

The fourth proportional to 710,784.54, 1,066,019.54 and 205,235.78 is: 307,808.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,784.54 : 1,066,019.54 = 205,235.78 : x
  2. Step 2: Convert to fraction form
    710,784.54/1,066,019.54 = 205,235.78/x
  3. Step 3: Cross multiply
    710,784.54x = 1,066,019.54 × 205,235.78
  4. Step 4: Simplify right side
    710,784.54x = 218,785,351,787.14
  5. Step 5: Solve for x
    x = 218,785,351,787.14/710,784.54
  6. Step 6: Final answer
    x = 307,808.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.