Home / 987,180.37-1,479,683.75-645,482.89

Finding the Fourth Proportional to 987,180.37, 1,479,683.75 and 645,482.89

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Solution

The fourth proportional to 987,180.37, 1,479,683.75 and 645,482.89 is: 967,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,180.37 : 1,479,683.75 = 645,482.89 : x
  2. Step 2: Convert to fraction form
    987,180.37/1,479,683.75 = 645,482.89/x
  3. Step 3: Cross multiply
    987,180.37x = 1,479,683.75 × 645,482.89
  4. Step 4: Simplify right side
    987,180.37x = 955,110,538,981.27
  5. Step 5: Solve for x
    x = 955,110,538,981.27/987,180.37
  6. Step 6: Final answer
    x = 967,513.70

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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.