Home / 773,071.47-1,066,802.64-428,903.74

Finding the Fourth Proportional to 773,071.47, 1,066,802.64 and 428,903.74

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Solution

The fourth proportional to 773,071.47, 1,066,802.64 and 428,903.74 is: 591,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,071.47 : 1,066,802.64 = 428,903.74 : x
  2. Step 2: Convert to fraction form
    773,071.47/1,066,802.64 = 428,903.74/x
  3. Step 3: Cross multiply
    773,071.47x = 1,066,802.64 × 428,903.74
  4. Step 4: Simplify right side
    773,071.47x = 457,555,642,137.87
  5. Step 5: Solve for x
    x = 457,555,642,137.87/773,071.47
  6. Step 6: Final answer
    x = 591,867.19

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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.