Home / 1,149,490-1,586,182.60-640,239.76

Finding the Fourth Proportional to 1,149,490, 1,586,182.60 and 640,239.76

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Solution

The fourth proportional to 1,149,490, 1,586,182.60 and 640,239.76 is: 883,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,490 : 1,586,182.60 = 640,239.76 : x
  2. Step 2: Convert to fraction form
    1,149,490/1,586,182.60 = 640,239.76/x
  3. Step 3: Cross multiply
    1,149,490x = 1,586,182.60 × 640,239.76
  4. Step 4: Simplify right side
    1,149,490x = 1,015,537,167,140.18
  5. Step 5: Solve for x
    x = 1,015,537,167,140.18/1,149,490
  6. Step 6: Final answer
    x = 883,467.60

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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.