Home / 1,312,782.15-1,811,632.57-761,609.32

Finding the Fourth Proportional to 1,312,782.15, 1,811,632.57 and 761,609.32

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Solution

The fourth proportional to 1,312,782.15, 1,811,632.57 and 761,609.32 is: 1,051,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,782.15 : 1,811,632.57 = 761,609.32 : x
  2. Step 2: Convert to fraction form
    1,312,782.15/1,811,632.57 = 761,609.32/x
  3. Step 3: Cross multiply
    1,312,782.15x = 1,811,632.57 × 761,609.32
  4. Step 4: Simplify right side
    1,312,782.15x = 1,379,756,249,727.55
  5. Step 5: Solve for x
    x = 1,379,756,249,727.55/1,312,782.15
  6. Step 6: Final answer
    x = 1,051,016.92

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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.