Home / 760,750.23-1,049,835.39-421,218.48

Finding the Fourth Proportional to 760,750.23, 1,049,835.39 and 421,218.48

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Solution

The fourth proportional to 760,750.23, 1,049,835.39 and 421,218.48 is: 581,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,750.23 : 1,049,835.39 = 421,218.48 : x
  2. Step 2: Convert to fraction form
    760,750.23/1,049,835.39 = 421,218.48/x
  3. Step 3: Cross multiply
    760,750.23x = 1,049,835.39 × 421,218.48
  4. Step 4: Simplify right side
    760,750.23x = 442,210,067,226.01
  5. Step 5: Solve for x
    x = 442,210,067,226.01/760,750.23
  6. Step 6: Final answer
    x = 581,281.54

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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.