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Finding the Fourth Proportional to 630,594.60, 870,239.04 and 344,133.18

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Solution

The fourth proportional to 630,594.60, 870,239.04 and 344,133.18 is: 474,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,594.60 : 870,239.04 = 344,133.18 : x
  2. Step 2: Convert to fraction form
    630,594.60/870,239.04 = 344,133.18/x
  3. Step 3: Cross multiply
    630,594.60x = 870,239.04 × 344,133.18
  4. Step 4: Simplify right side
    630,594.60x = 299,478,128,195.35
  5. Step 5: Solve for x
    x = 299,478,128,195.35/630,594.60
  6. Step 6: Final answer
    x = 474,913.88

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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.