Home / 810,061.37-1,118,021.15-470,726.45

Finding the Fourth Proportional to 810,061.37, 1,118,021.15 and 470,726.45

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Solution

The fourth proportional to 810,061.37, 1,118,021.15 and 470,726.45 is: 649,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,061.37 : 1,118,021.15 = 470,726.45 : x
  2. Step 2: Convert to fraction form
    810,061.37/1,118,021.15 = 470,726.45/x
  3. Step 3: Cross multiply
    810,061.37x = 1,118,021.15 × 470,726.45
  4. Step 4: Simplify right side
    810,061.37x = 526,282,122,551.13
  5. Step 5: Solve for x
    x = 526,282,122,551.13/810,061.37
  6. Step 6: Final answer
    x = 649,681.80

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Double scale
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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.