Home / 1,312,650-1,811,457.72-709,038

Finding the Fourth Proportional to 1,312,650, 1,811,457.72 and 709,038

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Solution

The fourth proportional to 1,312,650, 1,811,457.72 and 709,038 is: 978,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,650 : 1,811,457.72 = 709,038 : x
  2. Step 2: Convert to fraction form
    1,312,650/1,811,457.72 = 709,038/x
  3. Step 3: Cross multiply
    1,312,650x = 1,811,457.72 × 709,038
  4. Step 4: Simplify right side
    1,312,650x = 1,284,392,358,873.36
  5. Step 5: Solve for x
    x = 1,284,392,358,873.36/1,312,650
  6. Step 6: Final answer
    x = 978,472.83

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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.