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Finding the Fourth Proportional to 340,929.60, 512,008.80 and 329,870.40

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Solution

The fourth proportional to 340,929.60, 512,008.80 and 329,870.40 is: 495,400.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,929.60 : 512,008.80 = 329,870.40 : x
  2. Step 2: Convert to fraction form
    340,929.60/512,008.80 = 329,870.40/x
  3. Step 3: Cross multiply
    340,929.60x = 512,008.80 × 329,870.40
  4. Step 4: Simplify right side
    340,929.60x = 168,896,547,659.52
  5. Step 5: Solve for x
    x = 168,896,547,659.52/340,929.60
  6. Step 6: Final answer
    x = 495,400.07

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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.