Home / 778,278.53-1,073,860.31-472,515.68

Finding the Fourth Proportional to 778,278.53, 1,073,860.31 and 472,515.68

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Solution

The fourth proportional to 778,278.53, 1,073,860.31 and 472,515.68 is: 651,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,278.53 : 1,073,860.31 = 472,515.68 : x
  2. Step 2: Convert to fraction form
    778,278.53/1,073,860.31 = 472,515.68/x
  3. Step 3: Cross multiply
    778,278.53x = 1,073,860.31 × 472,515.68
  4. Step 4: Simplify right side
    778,278.53x = 507,415,831,101.19
  5. Step 5: Solve for x
    x = 507,415,831,101.19/778,278.53
  6. Step 6: Final answer
    x = 651,972.03

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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.