Home / 1,919,109.60-2,878,664.40-974,325.60

Finding the Fourth Proportional to 1,919,109.60, 2,878,664.40 and 974,325.60

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Solution

The fourth proportional to 1,919,109.60, 2,878,664.40 and 974,325.60 is: 1,461,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,109.60 : 2,878,664.40 = 974,325.60 : x
  2. Step 2: Convert to fraction form
    1,919,109.60/2,878,664.40 = 974,325.60/x
  3. Step 3: Cross multiply
    1,919,109.60x = 2,878,664.40 × 974,325.60
  4. Step 4: Simplify right side
    1,919,109.60x = 2,804,756,418,728.64
  5. Step 5: Solve for x
    x = 2,804,756,418,728.64/1,919,109.60
  6. Step 6: Final answer
    x = 1,461,488.40

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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.