Home / 810,151.89-1,118,009.60-470,642.01

Finding the Fourth Proportional to 810,151.89, 1,118,009.60 and 470,642.01

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Solution

The fourth proportional to 810,151.89, 1,118,009.60 and 470,642.01 is: 649,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,151.89 : 1,118,009.60 = 470,642.01 : x
  2. Step 2: Convert to fraction form
    810,151.89/1,118,009.60 = 470,642.01/x
  3. Step 3: Cross multiply
    810,151.89x = 1,118,009.60 × 470,642.01
  4. Step 4: Simplify right side
    810,151.89x = 526,182,282,990.09
  5. Step 5: Solve for x
    x = 526,182,282,990.09/810,151.89
  6. Step 6: Final answer
    x = 649,485.97

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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.