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Finding the Fourth Proportional to 706,528.63, 974,988.65 and 400,632.94

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Solution

The fourth proportional to 706,528.63, 974,988.65 and 400,632.94 is: 552,861.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,528.63 : 974,988.65 = 400,632.94 : x
  2. Step 2: Convert to fraction form
    706,528.63/974,988.65 = 400,632.94/x
  3. Step 3: Cross multiply
    706,528.63x = 974,988.65 × 400,632.94
  4. Step 4: Simplify right side
    706,528.63x = 390,612,563,798.58
  5. Step 5: Solve for x
    x = 390,612,563,798.58/706,528.63
  6. Step 6: Final answer
    x = 552,861.62

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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.