Home / 760,858.32-1,049,971.52-421,319.28

Finding the Fourth Proportional to 760,858.32, 1,049,971.52 and 421,319.28

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Solution

The fourth proportional to 760,858.32, 1,049,971.52 and 421,319.28 is: 581,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,858.32 : 1,049,971.52 = 421,319.28 : x
  2. Step 2: Convert to fraction form
    760,858.32/1,049,971.52 = 421,319.28/x
  3. Step 3: Cross multiply
    760,858.32x = 1,049,971.52 × 421,319.28
  4. Step 4: Simplify right side
    760,858.32x = 442,373,244,826.91
  5. Step 5: Solve for x
    x = 442,373,244,826.91/760,858.32
  6. Step 6: Final answer
    x = 581,413.43

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1.5x scale

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.