Home / 1,210,221.60-1,812,567.60-712,557.60

Finding the Fourth Proportional to 1,210,221.60, 1,812,567.60 and 712,557.60

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Solution

The fourth proportional to 1,210,221.60, 1,812,567.60 and 712,557.60 is: 1,067,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,221.60 : 1,812,567.60 = 712,557.60 : x
  2. Step 2: Convert to fraction form
    1,210,221.60/1,812,567.60 = 712,557.60/x
  3. Step 3: Cross multiply
    1,210,221.60x = 1,812,567.60 × 712,557.60
  4. Step 4: Simplify right side
    1,210,221.60x = 1,291,558,818,893.76
  5. Step 5: Solve for x
    x = 1,291,558,818,893.76/1,210,221.60
  6. Step 6: Final answer
    x = 1,067,208.53

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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.