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Finding the Fourth Proportional to 688,946.32, 950,798.95 and 383,047.90

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Solution

The fourth proportional to 688,946.32, 950,798.95 and 383,047.90 is: 528,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,946.32 : 950,798.95 = 383,047.90 : x
  2. Step 2: Convert to fraction form
    688,946.32/950,798.95 = 383,047.90/x
  3. Step 3: Cross multiply
    688,946.32x = 950,798.95 × 383,047.90
  4. Step 4: Simplify right side
    688,946.32x = 364,201,541,119.71
  5. Step 5: Solve for x
    x = 364,201,541,119.71/688,946.32
  6. Step 6: Final answer
    x = 528,635.59

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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.