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Finding the Fourth Proportional to 679,569.84, 937,808.79 and 373,665.47

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Solution

The fourth proportional to 679,569.84, 937,808.79 and 373,665.47 is: 515,659.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,569.84 : 937,808.79 = 373,665.47 : x
  2. Step 2: Convert to fraction form
    679,569.84/937,808.79 = 373,665.47/x
  3. Step 3: Cross multiply
    679,569.84x = 937,808.79 × 373,665.47
  4. Step 4: Simplify right side
    679,569.84x = 350,426,757,596.44
  5. Step 5: Solve for x
    x = 350,426,757,596.44/679,569.84
  6. Step 6: Final answer
    x = 515,659.67

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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.