Home / 760,814.12-1,049,923.30-421,282.28

Finding the Fourth Proportional to 760,814.12, 1,049,923.30 and 421,282.28

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Solution

The fourth proportional to 760,814.12, 1,049,923.30 and 421,282.28 is: 581,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,814.12 : 1,049,923.30 = 421,282.28 : x
  2. Step 2: Convert to fraction form
    760,814.12/1,049,923.30 = 421,282.28/x
  3. Step 3: Cross multiply
    760,814.12x = 1,049,923.30 × 421,282.28
  4. Step 4: Simplify right side
    760,814.12x = 442,314,081,649.12
  5. Step 5: Solve for x
    x = 442,314,081,649.12/760,814.12
  6. Step 6: Final answer
    x = 581,369.44

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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.