Home / 761,106.38-1,050,361.43-421,574.63

Finding the Fourth Proportional to 761,106.38, 1,050,361.43 and 421,574.63

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Solution

The fourth proportional to 761,106.38, 1,050,361.43 and 421,574.63 is: 581,792.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,106.38 : 1,050,361.43 = 421,574.63 : x
  2. Step 2: Convert to fraction form
    761,106.38/1,050,361.43 = 421,574.63/x
  3. Step 3: Cross multiply
    761,106.38x = 1,050,361.43 × 421,574.63
  4. Step 4: Simplify right side
    761,106.38x = 442,805,723,858.84
  5. Step 5: Solve for x
    x = 442,805,723,858.84/761,106.38
  6. Step 6: Final answer
    x = 581,792.16

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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.