Home / 760,767.08-1,049,858.54-421,235.32

Finding the Fourth Proportional to 760,767.08, 1,049,858.54 and 421,235.32

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Solution

The fourth proportional to 760,767.08, 1,049,858.54 and 421,235.32 is: 581,304.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,767.08 : 1,049,858.54 = 421,235.32 : x
  2. Step 2: Convert to fraction form
    760,767.08/1,049,858.54 = 421,235.32/x
  3. Step 3: Cross multiply
    760,767.08x = 1,049,858.54 × 421,235.32
  4. Step 4: Simplify right side
    760,767.08x = 442,237,498,051.63
  5. Step 5: Solve for x
    x = 442,237,498,051.63/760,767.08
  6. Step 6: Final answer
    x = 581,304.72

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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.