Home / 778,501.59-1,074,332.34-438,969.84

Finding the Fourth Proportional to 778,501.59, 1,074,332.34 and 438,969.84

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Solution

The fourth proportional to 778,501.59, 1,074,332.34 and 438,969.84 is: 605,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,501.59 : 1,074,332.34 = 438,969.84 : x
  2. Step 2: Convert to fraction form
    778,501.59/1,074,332.34 = 438,969.84/x
  3. Step 3: Cross multiply
    778,501.59x = 1,074,332.34 × 438,969.84
  4. Step 4: Simplify right side
    778,501.59x = 471,599,495,396.63
  5. Step 5: Solve for x
    x = 471,599,495,396.63/778,501.59
  6. Step 6: Final answer
    x = 605,778.46

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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.