Home / 761,318.73-1,050,542.87-455,334.35

Finding the Fourth Proportional to 761,318.73, 1,050,542.87 and 455,334.35

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Solution

The fourth proportional to 761,318.73, 1,050,542.87 and 455,334.35 is: 628,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,318.73 : 1,050,542.87 = 455,334.35 : x
  2. Step 2: Convert to fraction form
    761,318.73/1,050,542.87 = 455,334.35/x
  3. Step 3: Cross multiply
    761,318.73x = 1,050,542.87 × 455,334.35
  4. Step 4: Simplify right side
    761,318.73x = 478,348,247,329.20
  5. Step 5: Solve for x
    x = 478,348,247,329.20/761,318.73
  6. Step 6: Final answer
    x = 628,315.35

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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.