Home / 346,439.28-516,456.58-340,979.55

Finding the Fourth Proportional to 346,439.28, 516,456.58 and 340,979.55

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Solution

The fourth proportional to 346,439.28, 516,456.58 and 340,979.55 is: 508,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,439.28 : 516,456.58 = 340,979.55 : x
  2. Step 2: Convert to fraction form
    346,439.28/516,456.58 = 340,979.55/x
  3. Step 3: Cross multiply
    346,439.28x = 516,456.58 × 340,979.55
  4. Step 4: Simplify right side
    346,439.28x = 176,101,130,538.04
  5. Step 5: Solve for x
    x = 176,101,130,538.04/346,439.28
  6. Step 6: Final answer
    x = 508,317.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.