Home / 915,916.34-1,263,912.93-507,988.91

Finding the Fourth Proportional to 915,916.34, 1,263,912.93 and 507,988.91

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Solution

The fourth proportional to 915,916.34, 1,263,912.93 and 507,988.91 is: 700,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,916.34 : 1,263,912.93 = 507,988.91 : x
  2. Step 2: Convert to fraction form
    915,916.34/1,263,912.93 = 507,988.91/x
  3. Step 3: Cross multiply
    915,916.34x = 1,263,912.93 × 507,988.91
  4. Step 4: Simplify right side
    915,916.34x = 642,053,745,326.04
  5. Step 5: Solve for x
    x = 642,053,745,326.04/915,916.34
  6. Step 6: Final answer
    x = 700,996.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.