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Finding the Fourth Proportional to 983,992.80, 1,475,989.20 and 896,901.60

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Solution

The fourth proportional to 983,992.80, 1,475,989.20 and 896,901.60 is: 1,345,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,992.80 : 1,475,989.20 = 896,901.60 : x
  2. Step 2: Convert to fraction form
    983,992.80/1,475,989.20 = 896,901.60/x
  3. Step 3: Cross multiply
    983,992.80x = 1,475,989.20 × 896,901.60
  4. Step 4: Simplify right side
    983,992.80x = 1,323,817,075,062.72
  5. Step 5: Solve for x
    x = 1,323,817,075,062.72/983,992.80
  6. Step 6: Final answer
    x = 1,345,352.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.