Home / 538,430.23-743,038.59-296,721.46

Finding the Fourth Proportional to 538,430.23, 743,038.59 and 296,721.46

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Solution

The fourth proportional to 538,430.23, 743,038.59 and 296,721.46 is: 409,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,430.23 : 743,038.59 = 296,721.46 : x
  2. Step 2: Convert to fraction form
    538,430.23/743,038.59 = 296,721.46/x
  3. Step 3: Cross multiply
    538,430.23x = 743,038.59 × 296,721.46
  4. Step 4: Simplify right side
    538,430.23x = 220,475,495,261.14
  5. Step 5: Solve for x
    x = 220,475,495,261.14/538,430.23
  6. Step 6: Final answer
    x = 409,478.30

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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.