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Finding the Fourth Proportional to 671,089.32, 926,141.58 and 384,657.12

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Solution

The fourth proportional to 671,089.32, 926,141.58 and 384,657.12 is: 530,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,089.32 : 926,141.58 = 384,657.12 : x
  2. Step 2: Convert to fraction form
    671,089.32/926,141.58 = 384,657.12/x
  3. Step 3: Cross multiply
    671,089.32x = 926,141.58 × 384,657.12
  4. Step 4: Simplify right side
    671,089.32x = 356,246,952,875.05
  5. Step 5: Solve for x
    x = 356,246,952,875.05/671,089.32
  6. Step 6: Final answer
    x = 530,848.79

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Double scale
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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.