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Finding the Fourth Proportional to 526,538.94, 726,392.93 and 308,637.15

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Solution

The fourth proportional to 526,538.94, 726,392.93 and 308,637.15 is: 425,783.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,538.94 : 726,392.93 = 308,637.15 : x
  2. Step 2: Convert to fraction form
    526,538.94/726,392.93 = 308,637.15/x
  3. Step 3: Cross multiply
    526,538.94x = 726,392.93 × 308,637.15
  4. Step 4: Simplify right side
    526,538.94x = 224,191,842,152.16
  5. Step 5: Solve for x
    x = 224,191,842,152.16/526,538.94
  6. Step 6: Final answer
    x = 425,783.97

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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.