Home / 810,897.90-1,118,990.94-448,300.08

Finding the Fourth Proportional to 810,897.90, 1,118,990.94 and 448,300.08

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Solution

The fourth proportional to 810,897.90, 1,118,990.94 and 448,300.08 is: 618,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,897.90 : 1,118,990.94 = 448,300.08 : x
  2. Step 2: Convert to fraction form
    810,897.90/1,118,990.94 = 448,300.08/x
  3. Step 3: Cross multiply
    810,897.90x = 1,118,990.94 × 448,300.08
  4. Step 4: Simplify right side
    810,897.90x = 501,643,727,921.28
  5. Step 5: Solve for x
    x = 501,643,727,921.28/810,897.90
  6. Step 6: Final answer
    x = 618,627.48

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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.