Home / 761,358.23-1,050,574.28-455,322.82

Finding the Fourth Proportional to 761,358.23, 1,050,574.28 and 455,322.82

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Solution

The fourth proportional to 761,358.23, 1,050,574.28 and 455,322.82 is: 628,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,358.23 : 1,050,574.28 = 455,322.82 : x
  2. Step 2: Convert to fraction form
    761,358.23/1,050,574.28 = 455,322.82/x
  3. Step 3: Cross multiply
    761,358.23x = 1,050,574.28 × 455,322.82
  4. Step 4: Simplify right side
    761,358.23x = 478,350,442,136.44
  5. Step 5: Solve for x
    x = 478,350,442,136.44/761,358.23
  6. Step 6: Final answer
    x = 628,285.64

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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.