Home / 810,145.13-1,118,000.27-470,635.25

Finding the Fourth Proportional to 810,145.13, 1,118,000.27 and 470,635.25

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Solution

The fourth proportional to 810,145.13, 1,118,000.27 and 470,635.25 is: 649,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,145.13 : 1,118,000.27 = 470,635.25 : x
  2. Step 2: Convert to fraction form
    810,145.13/1,118,000.27 = 470,635.25/x
  3. Step 3: Cross multiply
    810,145.13x = 1,118,000.27 × 470,635.25
  4. Step 4: Simplify right side
    810,145.13x = 526,170,332,158.10
  5. Step 5: Solve for x
    x = 526,170,332,158.10/810,145.13
  6. Step 6: Final answer
    x = 649,476.64

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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.