Home / 1,312,729-1,811,567.64-709,117

Finding the Fourth Proportional to 1,312,729, 1,811,567.64 and 709,117

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Solution

The fourth proportional to 1,312,729, 1,811,567.64 and 709,117 is: 978,582.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,729 : 1,811,567.64 = 709,117 : x
  2. Step 2: Convert to fraction form
    1,312,729/1,811,567.64 = 709,117/x
  3. Step 3: Cross multiply
    1,312,729x = 1,811,567.64 × 709,117
  4. Step 4: Simplify right side
    1,312,729x = 1,284,613,410,173.88
  5. Step 5: Solve for x
    x = 1,284,613,410,173.88/1,312,729
  6. Step 6: Final answer
    x = 978,582.34

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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.