Home / 537,931.30-742,321.29-308,324.05

Finding the Fourth Proportional to 537,931.30, 742,321.29 and 308,324.05

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Solution

The fourth proportional to 537,931.30, 742,321.29 and 308,324.05 is: 425,473.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,931.30 : 742,321.29 = 308,324.05 : x
  2. Step 2: Convert to fraction form
    537,931.30/742,321.29 = 308,324.05/x
  3. Step 3: Cross multiply
    537,931.30x = 742,321.29 × 308,324.05
  4. Step 4: Simplify right side
    537,931.30x = 228,875,506,534.03
  5. Step 5: Solve for x
    x = 228,875,506,534.03/537,931.30
  6. Step 6: Final answer
    x = 425,473.49

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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.