Home / 648,374.40-972,043.20-274,089.60

Finding the Fourth Proportional to 648,374.40, 972,043.20 and 274,089.60

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Solution

The fourth proportional to 648,374.40, 972,043.20 and 274,089.60 is: 410,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,374.40 : 972,043.20 = 274,089.60 : x
  2. Step 2: Convert to fraction form
    648,374.40/972,043.20 = 274,089.60/x
  3. Step 3: Cross multiply
    648,374.40x = 972,043.20 × 274,089.60
  4. Step 4: Simplify right side
    648,374.40x = 266,426,931,870.72
  5. Step 5: Solve for x
    x = 266,426,931,870.72/648,374.40
  6. Step 6: Final answer
    x = 410,915.25

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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.