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Finding the Fourth Proportional to 640,294.04, 960,607.12 and 340,528.12

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Solution

The fourth proportional to 640,294.04, 960,607.12 and 340,528.12 is: 510,880.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,294.04 : 960,607.12 = 340,528.12 : x
  2. Step 2: Convert to fraction form
    640,294.04/960,607.12 = 340,528.12/x
  3. Step 3: Cross multiply
    640,294.04x = 960,607.12 × 340,528.12
  4. Step 4: Simplify right side
    640,294.04x = 327,113,736,632.21
  5. Step 5: Solve for x
    x = 327,113,736,632.21/640,294.04
  6. Step 6: Final answer
    x = 510,880.50

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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.