Home / 745,810.40-1,118,715.60-213,363.20

Finding the Fourth Proportional to 745,810.40, 1,118,715.60 and 213,363.20

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Solution

The fourth proportional to 745,810.40, 1,118,715.60 and 213,363.20 is: 320,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,810.40 : 1,118,715.60 = 213,363.20 : x
  2. Step 2: Convert to fraction form
    745,810.40/1,118,715.60 = 213,363.20/x
  3. Step 3: Cross multiply
    745,810.40x = 1,118,715.60 × 213,363.20
  4. Step 4: Simplify right side
    745,810.40x = 238,692,740,305.92
  5. Step 5: Solve for x
    x = 238,692,740,305.92/745,810.40
  6. Step 6: Final answer
    x = 320,044.80

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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.