Home / 991,905.96-1,487,298.69-907,269.06

Finding the Fourth Proportional to 991,905.96, 1,487,298.69 and 907,269.06

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Solution

The fourth proportional to 991,905.96, 1,487,298.69 and 907,269.06 is: 1,360,391.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,905.96 : 1,487,298.69 = 907,269.06 : x
  2. Step 2: Convert to fraction form
    991,905.96/1,487,298.69 = 907,269.06/x
  3. Step 3: Cross multiply
    991,905.96x = 1,487,298.69 × 907,269.06
  4. Step 4: Simplify right side
    991,905.96x = 1,349,380,084,415.53
  5. Step 5: Solve for x
    x = 1,349,380,084,415.53/991,905.96
  6. Step 6: Final answer
    x = 1,360,391.14

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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.