Home / 1,312,913-1,811,819.94-709,301

Finding the Fourth Proportional to 1,312,913, 1,811,819.94 and 709,301

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Solution

The fourth proportional to 1,312,913, 1,811,819.94 and 709,301 is: 978,835.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,913 : 1,811,819.94 = 709,301 : x
  2. Step 2: Convert to fraction form
    1,312,913/1,811,819.94 = 709,301/x
  3. Step 3: Cross multiply
    1,312,913x = 1,811,819.94 × 709,301
  4. Step 4: Simplify right side
    1,312,913x = 1,285,125,695,261.94
  5. Step 5: Solve for x
    x = 1,285,125,695,261.94/1,312,913
  6. Step 6: Final answer
    x = 978,835.38

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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.