Home / 1,390,784.26-1,919,581.77-847,099.30

Finding the Fourth Proportional to 1,390,784.26, 1,919,581.77 and 847,099.30

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Solution

The fourth proportional to 1,390,784.26, 1,919,581.77 and 847,099.30 is: 1,169,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,784.26 : 1,919,581.77 = 847,099.30 : x
  2. Step 2: Convert to fraction form
    1,390,784.26/1,919,581.77 = 847,099.30/x
  3. Step 3: Cross multiply
    1,390,784.26x = 1,919,581.77 × 847,099.30
  4. Step 4: Simplify right side
    1,390,784.26x = 1,626,076,373,659.76
  5. Step 5: Solve for x
    x = 1,626,076,373,659.76/1,390,784.26
  6. Step 6: Final answer
    x = 1,169,179.45

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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.