Home / 1,312,396.83-1,968,343.74-553,988.97

Finding the Fourth Proportional to 1,312,396.83, 1,968,343.74 and 553,988.97

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Solution

The fourth proportional to 1,312,396.83, 1,968,343.74 and 553,988.97 is: 830,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,396.83 : 1,968,343.74 = 553,988.97 : x
  2. Step 2: Convert to fraction form
    1,312,396.83/1,968,343.74 = 553,988.97/x
  3. Step 3: Cross multiply
    1,312,396.83x = 1,968,343.74 × 553,988.97
  4. Step 4: Simplify right side
    1,312,396.83x = 1,090,440,721,128.55
  5. Step 5: Solve for x
    x = 1,090,440,721,128.55/1,312,396.83
  6. Step 6: Final answer
    x = 830,877.29

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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.