Home / 760,061.40-1,138,863.30-479,075.80

Finding the Fourth Proportional to 760,061.40, 1,138,863.30 and 479,075.80

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Solution

The fourth proportional to 760,061.40, 1,138,863.30 and 479,075.80 is: 717,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,061.40 : 1,138,863.30 = 479,075.80 : x
  2. Step 2: Convert to fraction form
    760,061.40/1,138,863.30 = 479,075.80/x
  3. Step 3: Cross multiply
    760,061.40x = 1,138,863.30 × 479,075.80
  4. Step 4: Simplify right side
    760,061.40x = 545,601,846,538.14
  5. Step 5: Solve for x
    x = 545,601,846,538.14/760,061.40
  6. Step 6: Final answer
    x = 717,839.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.