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Finding the Fourth Proportional to 648,001.70, 971,710.95 and 248,509.70

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Solution

The fourth proportional to 648,001.70, 971,710.95 and 248,509.70 is: 372,652.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,001.70 : 971,710.95 = 248,509.70 : x
  2. Step 2: Convert to fraction form
    648,001.70/971,710.95 = 248,509.70/x
  3. Step 3: Cross multiply
    648,001.70x = 971,710.95 × 248,509.70
  4. Step 4: Simplify right side
    648,001.70x = 241,479,596,671.22
  5. Step 5: Solve for x
    x = 241,479,596,671.22/648,001.70
  6. Step 6: Final answer
    x = 372,652.72

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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.