Home / 885,810.40-1,328,456.40-317,125.60

Finding the Fourth Proportional to 885,810.40, 1,328,456.40 and 317,125.60

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Solution

The fourth proportional to 885,810.40, 1,328,456.40 and 317,125.60 is: 475,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,810.40 : 1,328,456.40 = 317,125.60 : x
  2. Step 2: Convert to fraction form
    885,810.40/1,328,456.40 = 317,125.60/x
  3. Step 3: Cross multiply
    885,810.40x = 1,328,456.40 × 317,125.60
  4. Step 4: Simplify right side
    885,810.40x = 421,287,532,923.84
  5. Step 5: Solve for x
    x = 421,287,532,923.84/885,810.40
  6. Step 6: Final answer
    x = 475,595.60

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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.