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Finding the Fourth Proportional to 492,655.68, 679,865.40 and 266,301

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Solution

The fourth proportional to 492,655.68, 679,865.40 and 266,301 is: 367,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,655.68 : 679,865.40 = 266,301 : x
  2. Step 2: Convert to fraction form
    492,655.68/679,865.40 = 266,301/x
  3. Step 3: Cross multiply
    492,655.68x = 679,865.40 × 266,301
  4. Step 4: Simplify right side
    492,655.68x = 181,048,835,885.40
  5. Step 5: Solve for x
    x = 181,048,835,885.40/492,655.68
  6. Step 6: Final answer
    x = 367,495.68

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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.