Home / 1,173,165.89-1,618,968.93-636,621.89

Finding the Fourth Proportional to 1,173,165.89, 1,618,968.93 and 636,621.89

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Solution

The fourth proportional to 1,173,165.89, 1,618,968.93 and 636,621.89 is: 878,538.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,165.89 : 1,618,968.93 = 636,621.89 : x
  2. Step 2: Convert to fraction form
    1,173,165.89/1,618,968.93 = 636,621.89/x
  3. Step 3: Cross multiply
    1,173,165.89x = 1,618,968.93 × 636,621.89
  4. Step 4: Simplify right side
    1,173,165.89x = 1,030,671,060,482.90
  5. Step 5: Solve for x
    x = 1,030,671,060,482.90/1,173,165.89
  6. Step 6: Final answer
    x = 878,538.21

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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.