Home / 761,395.22-1,050,725.36-455,484.45

Finding the Fourth Proportional to 761,395.22, 1,050,725.36 and 455,484.45

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Solution

The fourth proportional to 761,395.22, 1,050,725.36 and 455,484.45 is: 628,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,395.22 : 1,050,725.36 = 455,484.45 : x
  2. Step 2: Convert to fraction form
    761,395.22/1,050,725.36 = 455,484.45/x
  3. Step 3: Cross multiply
    761,395.22x = 1,050,725.36 × 455,484.45
  4. Step 4: Simplify right side
    761,395.22x = 478,589,063,839.36
  5. Step 5: Solve for x
    x = 478,589,063,839.36/761,395.22
  6. Step 6: Final answer
    x = 628,568.51

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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.