Home / 753,148.35-1,039,341.31-408,981.51

Finding the Fourth Proportional to 753,148.35, 1,039,341.31 and 408,981.51

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Solution

The fourth proportional to 753,148.35, 1,039,341.31 and 408,981.51 is: 564,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,148.35 : 1,039,341.31 = 408,981.51 : x
  2. Step 2: Convert to fraction form
    753,148.35/1,039,341.31 = 408,981.51/x
  3. Step 3: Cross multiply
    753,148.35x = 1,039,341.31 × 408,981.51
  4. Step 4: Simplify right side
    753,148.35x = 425,071,377,346.72
  5. Step 5: Solve for x
    x = 425,071,377,346.72/753,148.35
  6. Step 6: Final answer
    x = 564,392.63

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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.