Home / 379,370.52-523,541.88-209,615.58

Finding the Fourth Proportional to 379,370.52, 523,541.88 and 209,615.58

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Solution

The fourth proportional to 379,370.52, 523,541.88 and 209,615.58 is: 289,275.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,370.52 : 523,541.88 = 209,615.58 : x
  2. Step 2: Convert to fraction form
    379,370.52/523,541.88 = 209,615.58/x
  3. Step 3: Cross multiply
    379,370.52x = 523,541.88 × 209,615.58
  4. Step 4: Simplify right side
    379,370.52x = 109,742,534,830.49
  5. Step 5: Solve for x
    x = 109,742,534,830.49/379,370.52
  6. Step 6: Final answer
    x = 289,275.34

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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.