Home / 753,147.23-1,039,339.76-408,980.39

Finding the Fourth Proportional to 753,147.23, 1,039,339.76 and 408,980.39

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Solution

The fourth proportional to 753,147.23, 1,039,339.76 and 408,980.39 is: 564,391.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,147.23 : 1,039,339.76 = 408,980.39 : x
  2. Step 2: Convert to fraction form
    753,147.23/1,039,339.76 = 408,980.39/x
  3. Step 3: Cross multiply
    753,147.23x = 1,039,339.76 × 408,980.39
  4. Step 4: Simplify right side
    753,147.23x = 425,069,573,145.71
  5. Step 5: Solve for x
    x = 425,069,573,145.71/753,147.23
  6. Step 6: Final answer
    x = 564,391.08

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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.