Home / 761,358.74-1,050,574.97-455,323.32

Finding the Fourth Proportional to 761,358.74, 1,050,574.97 and 455,323.32

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Solution

The fourth proportional to 761,358.74, 1,050,574.97 and 455,323.32 is: 628,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,358.74 : 1,050,574.97 = 455,323.32 : x
  2. Step 2: Convert to fraction form
    761,358.74/1,050,574.97 = 455,323.32/x
  3. Step 3: Cross multiply
    761,358.74x = 1,050,574.97 × 455,323.32
  4. Step 4: Simplify right side
    761,358.74x = 478,351,283,249.30
  5. Step 5: Solve for x
    x = 478,351,283,249.30/761,358.74
  6. Step 6: Final answer
    x = 628,286.33

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Double scale
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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.