Home / 628,313.51-867,047.37-341,834.78

Finding the Fourth Proportional to 628,313.51, 867,047.37 and 341,834.78

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Solution

The fourth proportional to 628,313.51, 867,047.37 and 341,834.78 is: 471,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,313.51 : 867,047.37 = 341,834.78 : x
  2. Step 2: Convert to fraction form
    628,313.51/867,047.37 = 341,834.78/x
  3. Step 3: Cross multiply
    628,313.51x = 867,047.37 × 341,834.78
  4. Step 4: Simplify right side
    628,313.51x = 296,386,946,973.53
  5. Step 5: Solve for x
    x = 296,386,946,973.53/628,313.51
  6. Step 6: Final answer
    x = 471,718.25

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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.