Home / 1,110,006.40-1,665,009.60-400,543.60

Finding the Fourth Proportional to 1,110,006.40, 1,665,009.60 and 400,543.60

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Solution

The fourth proportional to 1,110,006.40, 1,665,009.60 and 400,543.60 is: 600,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,006.40 : 1,665,009.60 = 400,543.60 : x
  2. Step 2: Convert to fraction form
    1,110,006.40/1,665,009.60 = 400,543.60/x
  3. Step 3: Cross multiply
    1,110,006.40x = 1,665,009.60 × 400,543.60
  4. Step 4: Simplify right side
    1,110,006.40x = 666,908,939,218.56
  5. Step 5: Solve for x
    x = 666,908,939,218.56/1,110,006.40
  6. Step 6: Final answer
    x = 600,815.40

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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.