Home / 1,030,413.36-1,421,039.61-643,264.52

Finding the Fourth Proportional to 1,030,413.36, 1,421,039.61 and 643,264.52

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Solution

The fourth proportional to 1,030,413.36, 1,421,039.61 and 643,264.52 is: 887,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,413.36 : 1,421,039.61 = 643,264.52 : x
  2. Step 2: Convert to fraction form
    1,030,413.36/1,421,039.61 = 643,264.52/x
  3. Step 3: Cross multiply
    1,030,413.36x = 1,421,039.61 × 643,264.52
  4. Step 4: Simplify right side
    1,030,413.36x = 914,104,366,180.24
  5. Step 5: Solve for x
    x = 914,104,366,180.24/1,030,413.36
  6. Step 6: Final answer
    x = 887,123.95

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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.