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Finding the Fourth Proportional to 664,897.60, 996,325.80 and 495,623.80

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Solution

The fourth proportional to 664,897.60, 996,325.80 and 495,623.80 is: 742,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,897.60 : 996,325.80 = 495,623.80 : x
  2. Step 2: Convert to fraction form
    664,897.60/996,325.80 = 495,623.80/x
  3. Step 3: Cross multiply
    664,897.60x = 996,325.80 × 495,623.80
  4. Step 4: Simplify right side
    664,897.60x = 493,802,779,034.04
  5. Step 5: Solve for x
    x = 493,802,779,034.04/664,897.60
  6. Step 6: Final answer
    x = 742,674.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.