Home / 912,271.48-1,367,078.63-438,403.25

Finding the Fourth Proportional to 912,271.48, 1,367,078.63 and 438,403.25

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Solution

The fourth proportional to 912,271.48, 1,367,078.63 and 438,403.25 is: 656,966.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,271.48 : 1,367,078.63 = 438,403.25 : x
  2. Step 2: Convert to fraction form
    912,271.48/1,367,078.63 = 438,403.25/x
  3. Step 3: Cross multiply
    912,271.48x = 1,367,078.63 × 438,403.25
  4. Step 4: Simplify right side
    912,271.48x = 599,331,715,623.23
  5. Step 5: Solve for x
    x = 599,331,715,623.23/912,271.48
  6. Step 6: Final answer
    x = 656,966.41

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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.