Home / 1,130,159.89-1,558,999.45-715,938.10

Finding the Fourth Proportional to 1,130,159.89, 1,558,999.45 and 715,938.10

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Solution

The fourth proportional to 1,130,159.89, 1,558,999.45 and 715,938.10 is: 987,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,159.89 : 1,558,999.45 = 715,938.10 : x
  2. Step 2: Convert to fraction form
    1,130,159.89/1,558,999.45 = 715,938.10/x
  3. Step 3: Cross multiply
    1,130,159.89x = 1,558,999.45 × 715,938.10
  4. Step 4: Simplify right side
    1,130,159.89x = 1,116,147,104,134.05
  5. Step 5: Solve for x
    x = 1,116,147,104,134.05/1,130,159.89
  6. Step 6: Final answer
    x = 987,601.06

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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.