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Finding the Fourth Proportional to 508,019.40, 762,155.64 and 358,551.36

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Solution

The fourth proportional to 508,019.40, 762,155.64 and 358,551.36 is: 537,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,019.40 : 762,155.64 = 358,551.36 : x
  2. Step 2: Convert to fraction form
    508,019.40/762,155.64 = 358,551.36/x
  3. Step 3: Cross multiply
    508,019.40x = 762,155.64 × 358,551.36
  4. Step 4: Simplify right side
    508,019.40x = 273,271,941,253.67
  5. Step 5: Solve for x
    x = 273,271,941,253.67/508,019.40
  6. Step 6: Final answer
    x = 537,916.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.