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Finding the Fourth Proportional to 626,215.35, 864,258.57 and 350,678.10

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Solution

The fourth proportional to 626,215.35, 864,258.57 and 350,678.10 is: 483,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,215.35 : 864,258.57 = 350,678.10 : x
  2. Step 2: Convert to fraction form
    626,215.35/864,258.57 = 350,678.10/x
  3. Step 3: Cross multiply
    626,215.35x = 864,258.57 × 350,678.10
  4. Step 4: Simplify right side
    626,215.35x = 303,076,553,236.32
  5. Step 5: Solve for x
    x = 303,076,553,236.32/626,215.35
  6. Step 6: Final answer
    x = 483,981.35

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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.