Home / 760,833.05-1,049,981.27-421,301.30

Finding the Fourth Proportional to 760,833.05, 1,049,981.27 and 421,301.30

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Solution

The fourth proportional to 760,833.05, 1,049,981.27 and 421,301.30 is: 581,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,833.05 : 1,049,981.27 = 421,301.30 : x
  2. Step 2: Convert to fraction form
    760,833.05/1,049,981.27 = 421,301.30/x
  3. Step 3: Cross multiply
    760,833.05x = 1,049,981.27 × 421,301.30
  4. Step 4: Simplify right side
    760,833.05x = 442,358,466,670.24
  5. Step 5: Solve for x
    x = 442,358,466,670.24/760,833.05
  6. Step 6: Final answer
    x = 581,413.32

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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.