Home / 760,551.80-1,049,569.26-421,012.76

Finding the Fourth Proportional to 760,551.80, 1,049,569.26 and 421,012.76

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Solution

The fourth proportional to 760,551.80, 1,049,569.26 and 421,012.76 is: 581,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,551.80 : 1,049,569.26 = 421,012.76 : x
  2. Step 2: Convert to fraction form
    760,551.80/1,049,569.26 = 421,012.76/x
  3. Step 3: Cross multiply
    760,551.80x = 1,049,569.26 × 421,012.76
  4. Step 4: Simplify right side
    760,551.80x = 441,882,050,963.76
  5. Step 5: Solve for x
    x = 441,882,050,963.76/760,551.80
  6. Step 6: Final answer
    x = 581,001.91

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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.