Home / 628,347.21-867,140.76-341,878.16

Finding the Fourth Proportional to 628,347.21, 867,140.76 and 341,878.16

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Solution

The fourth proportional to 628,347.21, 867,140.76 and 341,878.16 is: 471,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,347.21 : 867,140.76 = 341,878.16 : x
  2. Step 2: Convert to fraction form
    628,347.21/867,140.76 = 341,878.16/x
  3. Step 3: Cross multiply
    628,347.21x = 867,140.76 × 341,878.16
  4. Step 4: Simplify right side
    628,347.21x = 296,456,483,154.10
  5. Step 5: Solve for x
    x = 296,456,483,154.10/628,347.21
  6. Step 6: Final answer
    x = 471,803.61

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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.