Home / 745,868.61-1,118,813.84-213,390.60

Finding the Fourth Proportional to 745,868.61, 1,118,813.84 and 213,390.60

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Solution

The fourth proportional to 745,868.61, 1,118,813.84 and 213,390.60 is: 320,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,868.61 : 1,118,813.84 = 213,390.60 : x
  2. Step 2: Convert to fraction form
    745,868.61/1,118,813.84 = 213,390.60/x
  3. Step 3: Cross multiply
    745,868.61x = 1,118,813.84 × 213,390.60
  4. Step 4: Simplify right side
    745,868.61x = 238,744,356,605.90
  5. Step 5: Solve for x
    x = 238,744,356,605.90/745,868.61
  6. Step 6: Final answer
    x = 320,089.03

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1.5x scale

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.