Home / 537,869.40-742,259.76-299,405.40

Finding the Fourth Proportional to 537,869.40, 742,259.76 and 299,405.40

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Solution

The fourth proportional to 537,869.40, 742,259.76 and 299,405.40 is: 413,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,869.40 : 742,259.76 = 299,405.40 : x
  2. Step 2: Convert to fraction form
    537,869.40/742,259.76 = 299,405.40/x
  3. Step 3: Cross multiply
    537,869.40x = 742,259.76 × 299,405.40
  4. Step 4: Simplify right side
    537,869.40x = 222,236,580,346.70
  5. Step 5: Solve for x
    x = 222,236,580,346.70/537,869.40
  6. Step 6: Final answer
    x = 413,179.45

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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.