Home / 778,465.55-1,074,099.29-472,534.43

Finding the Fourth Proportional to 778,465.55, 1,074,099.29 and 472,534.43

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Solution

The fourth proportional to 778,465.55, 1,074,099.29 and 472,534.43 is: 651,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,465.55 : 1,074,099.29 = 472,534.43 : x
  2. Step 2: Convert to fraction form
    778,465.55/1,074,099.29 = 472,534.43/x
  3. Step 3: Cross multiply
    778,465.55x = 1,074,099.29 × 472,534.43
  4. Step 4: Simplify right side
    778,465.55x = 507,548,888,030.39
  5. Step 5: Solve for x
    x = 507,548,888,030.39/778,465.55
  6. Step 6: Final answer
    x = 651,986.32

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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.