Home / 698,741.76-964,210.59-392,769.48

Finding the Fourth Proportional to 698,741.76, 964,210.59 and 392,769.48

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Solution

The fourth proportional to 698,741.76, 964,210.59 and 392,769.48 is: 541,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,741.76 : 964,210.59 = 392,769.48 : x
  2. Step 2: Convert to fraction form
    698,741.76/964,210.59 = 392,769.48/x
  3. Step 3: Cross multiply
    698,741.76x = 964,210.59 × 392,769.48
  4. Step 4: Simplify right side
    698,741.76x = 378,712,492,044.79
  5. Step 5: Solve for x
    x = 378,712,492,044.79/698,741.76
  6. Step 6: Final answer
    x = 541,992.07

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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.