Home / 1,186,127.55-1,779,300.54-387,413.28

Finding the Fourth Proportional to 1,186,127.55, 1,779,300.54 and 387,413.28

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Solution

The fourth proportional to 1,186,127.55, 1,779,300.54 and 387,413.28 is: 581,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,127.55 : 1,779,300.54 = 387,413.28 : x
  2. Step 2: Convert to fraction form
    1,186,127.55/1,779,300.54 = 387,413.28/x
  3. Step 3: Cross multiply
    1,186,127.55x = 1,779,300.54 × 387,413.28
  4. Step 4: Simplify right side
    1,186,127.55x = 689,324,658,307.17
  5. Step 5: Solve for x
    x = 689,324,658,307.17/1,186,127.55
  6. Step 6: Final answer
    x = 581,155.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.