Home / 581,822.40-872,272.80-319,166.40

Finding the Fourth Proportional to 581,822.40, 872,272.80 and 319,166.40

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Solution

The fourth proportional to 581,822.40, 872,272.80 and 319,166.40 is: 478,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,822.40 : 872,272.80 = 319,166.40 : x
  2. Step 2: Convert to fraction form
    581,822.40/872,272.80 = 319,166.40/x
  3. Step 3: Cross multiply
    581,822.40x = 872,272.80 × 319,166.40
  4. Step 4: Simplify right side
    581,822.40x = 278,400,169,393.92
  5. Step 5: Solve for x
    x = 278,400,169,393.92/581,822.40
  6. Step 6: Final answer
    x = 478,496.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.