Home / 1,778,898.83-2,455,283.88-1,390,946.90

Finding the Fourth Proportional to 1,778,898.83, 2,455,283.88 and 1,390,946.90

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Solution

The fourth proportional to 1,778,898.83, 2,455,283.88 and 1,390,946.90 is: 1,919,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,898.83 : 2,455,283.88 = 1,390,946.90 : x
  2. Step 2: Convert to fraction form
    1,778,898.83/2,455,283.88 = 1,390,946.90/x
  3. Step 3: Cross multiply
    1,778,898.83x = 2,455,283.88 × 1,390,946.90
  4. Step 4: Simplify right side
    1,778,898.83x = 3,415,169,489,229.55
  5. Step 5: Solve for x
    x = 3,415,169,489,229.55/1,778,898.83
  6. Step 6: Final answer
    x = 1,919,822.22

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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.