Home / 729,678.83-1,006,880.39-423,695.55

Finding the Fourth Proportional to 729,678.83, 1,006,880.39 and 423,695.55

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Solution

The fourth proportional to 729,678.83, 1,006,880.39 and 423,695.55 is: 584,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,678.83 : 1,006,880.39 = 423,695.55 : x
  2. Step 2: Convert to fraction form
    729,678.83/1,006,880.39 = 423,695.55/x
  3. Step 3: Cross multiply
    729,678.83x = 1,006,880.39 × 423,695.55
  4. Step 4: Simplify right side
    729,678.83x = 426,610,738,506.79
  5. Step 5: Solve for x
    x = 426,610,738,506.79/729,678.83
  6. Step 6: Final answer
    x = 584,655.50

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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.