Home / 648,367.40-971,733.02-328,599.62

Finding the Fourth Proportional to 648,367.40, 971,733.02 and 328,599.62

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Solution

The fourth proportional to 648,367.40, 971,733.02 and 328,599.62 is: 492,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,367.40 : 971,733.02 = 328,599.62 : x
  2. Step 2: Convert to fraction form
    648,367.40/971,733.02 = 328,599.62/x
  3. Step 3: Cross multiply
    648,367.40x = 971,733.02 × 328,599.62
  4. Step 4: Simplify right side
    648,367.40x = 319,311,101,113.45
  5. Step 5: Solve for x
    x = 319,311,101,113.45/648,367.40
  6. Step 6: Final answer
    x = 492,484.82

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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.