Home / 1,312,606.20-1,968,971.84-637,883.64

Finding the Fourth Proportional to 1,312,606.20, 1,968,971.84 and 637,883.64

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Solution

The fourth proportional to 1,312,606.20, 1,968,971.84 and 637,883.64 is: 956,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,606.20 : 1,968,971.84 = 637,883.64 : x
  2. Step 2: Convert to fraction form
    1,312,606.20/1,968,971.84 = 637,883.64/x
  3. Step 3: Cross multiply
    1,312,606.20x = 1,968,971.84 × 637,883.64
  4. Step 4: Simplify right side
    1,312,606.20x = 1,255,974,924,356.70
  5. Step 5: Solve for x
    x = 1,255,974,924,356.70/1,312,606.20
  6. Step 6: Final answer
    x = 956,855.85

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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.