Home / 917,731.70-1,266,586.53-555,158.16

Finding the Fourth Proportional to 917,731.70, 1,266,586.53 and 555,158.16

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Solution

The fourth proportional to 917,731.70, 1,266,586.53 and 555,158.16 is: 766,188.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,731.70 : 1,266,586.53 = 555,158.16 : x
  2. Step 2: Convert to fraction form
    917,731.70/1,266,586.53 = 555,158.16/x
  3. Step 3: Cross multiply
    917,731.70x = 1,266,586.53 × 555,158.16
  4. Step 4: Simplify right side
    917,731.70x = 703,155,848,516.51
  5. Step 5: Solve for x
    x = 703,155,848,516.51/917,731.70
  6. Step 6: Final answer
    x = 766,188.90

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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.