Home / 810,148.14-1,118,004.42-470,638.26

Finding the Fourth Proportional to 810,148.14, 1,118,004.42 and 470,638.26

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Solution

The fourth proportional to 810,148.14, 1,118,004.42 and 470,638.26 is: 649,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,148.14 : 1,118,004.42 = 470,638.26 : x
  2. Step 2: Convert to fraction form
    810,148.14/1,118,004.42 = 470,638.26/x
  3. Step 3: Cross multiply
    810,148.14x = 1,118,004.42 × 470,638.26
  4. Step 4: Simplify right side
    810,148.14x = 526,175,654,901.11
  5. Step 5: Solve for x
    x = 526,175,654,901.11/810,148.14
  6. Step 6: Final answer
    x = 649,480.79

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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.