Home / 1,289,545.07-1,779,588.32-708,831.60

Finding the Fourth Proportional to 1,289,545.07, 1,779,588.32 and 708,831.60

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Solution

The fourth proportional to 1,289,545.07, 1,779,588.32 and 708,831.60 is: 978,196.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,545.07 : 1,779,588.32 = 708,831.60 : x
  2. Step 2: Convert to fraction form
    1,289,545.07/1,779,588.32 = 708,831.60/x
  3. Step 3: Cross multiply
    1,289,545.07x = 1,779,588.32 × 708,831.60
  4. Step 4: Simplify right side
    1,289,545.07x = 1,261,428,436,206.91
  5. Step 5: Solve for x
    x = 1,261,428,436,206.91/1,289,545.07
  6. Step 6: Final answer
    x = 978,196.47

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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.