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Finding the Fourth Proportional to 788,528, 1,088,169.60 and 430,832

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Solution

The fourth proportional to 788,528, 1,088,169.60 and 430,832 is: 594,548.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,528 : 1,088,169.60 = 430,832 : x
  2. Step 2: Convert to fraction form
    788,528/1,088,169.60 = 430,832/x
  3. Step 3: Cross multiply
    788,528x = 1,088,169.60 × 430,832
  4. Step 4: Simplify right side
    788,528x = 468,818,285,107.20
  5. Step 5: Solve for x
    x = 468,818,285,107.20/788,528
  6. Step 6: Final answer
    x = 594,548.68

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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.