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Finding the Fourth Proportional to 607,646.40, 838,552.02 and 339,374.40

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Solution

The fourth proportional to 607,646.40, 838,552.02 and 339,374.40 is: 468,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,646.40 : 838,552.02 = 339,374.40 : x
  2. Step 2: Convert to fraction form
    607,646.40/838,552.02 = 339,374.40/x
  3. Step 3: Cross multiply
    607,646.40x = 838,552.02 × 339,374.40
  4. Step 4: Simplify right side
    607,646.40x = 284,583,088,656.29
  5. Step 5: Solve for x
    x = 284,583,088,656.29/607,646.40
  6. Step 6: Final answer
    x = 468,336.67

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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.