Home / 438,038.34-604,622.18-256,789.50

Finding the Fourth Proportional to 438,038.34, 604,622.18 and 256,789.50

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Solution

The fourth proportional to 438,038.34, 604,622.18 and 256,789.50 is: 354,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,038.34 : 604,622.18 = 256,789.50 : x
  2. Step 2: Convert to fraction form
    438,038.34/604,622.18 = 256,789.50/x
  3. Step 3: Cross multiply
    438,038.34x = 604,622.18 × 256,789.50
  4. Step 4: Simplify right side
    438,038.34x = 155,260,627,291.11
  5. Step 5: Solve for x
    x = 155,260,627,291.11/438,038.34
  6. Step 6: Final answer
    x = 354,445.29

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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.