Home / 1,312,928.50-1,811,841.36-709,316.50

Finding the Fourth Proportional to 1,312,928.50, 1,811,841.36 and 709,316.50

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Solution

The fourth proportional to 1,312,928.50, 1,811,841.36 and 709,316.50 is: 978,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,928.50 : 1,811,841.36 = 709,316.50 : x
  2. Step 2: Convert to fraction form
    1,312,928.50/1,811,841.36 = 709,316.50/x
  3. Step 3: Cross multiply
    1,312,928.50x = 1,811,841.36 × 709,316.50
  4. Step 4: Simplify right side
    1,312,928.50x = 1,285,168,972,030.44
  5. Step 5: Solve for x
    x = 1,285,168,972,030.44/1,312,928.50
  6. Step 6: Final answer
    x = 978,856.79

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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.