Home / 1,390,455.60-2,083,230.36-1,217,750.16

Finding the Fourth Proportional to 1,390,455.60, 2,083,230.36 and 1,217,750.16

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Solution

The fourth proportional to 1,390,455.60, 2,083,230.36 and 1,217,750.16 is: 1,824,476.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,455.60 : 2,083,230.36 = 1,217,750.16 : x
  2. Step 2: Convert to fraction form
    1,390,455.60/2,083,230.36 = 1,217,750.16/x
  3. Step 3: Cross multiply
    1,390,455.60x = 2,083,230.36 × 1,217,750.16
  4. Step 4: Simplify right side
    1,390,455.60x = 2,536,854,104,206.86
  5. Step 5: Solve for x
    x = 2,536,854,104,206.86/1,390,455.60
  6. Step 6: Final answer
    x = 1,824,476.89

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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.