Home / 830,365.22-1,145,988.65-508,288.16

Finding the Fourth Proportional to 830,365.22, 1,145,988.65 and 508,288.16

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Solution

The fourth proportional to 830,365.22, 1,145,988.65 and 508,288.16 is: 701,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,365.22 : 1,145,988.65 = 508,288.16 : x
  2. Step 2: Convert to fraction form
    830,365.22/1,145,988.65 = 508,288.16/x
  3. Step 3: Cross multiply
    830,365.22x = 1,145,988.65 × 508,288.16
  4. Step 4: Simplify right side
    830,365.22x = 582,492,457,830.16
  5. Step 5: Solve for x
    x = 582,492,457,830.16/830,365.22
  6. Step 6: Final answer
    x = 701,489.47

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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.