Home / 745,605.80-1,118,117.10-272,047.40

Finding the Fourth Proportional to 745,605.80, 1,118,117.10 and 272,047.40

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Solution

The fourth proportional to 745,605.80, 1,118,117.10 and 272,047.40 is: 407,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,605.80 : 1,118,117.10 = 272,047.40 : x
  2. Step 2: Convert to fraction form
    745,605.80/1,118,117.10 = 272,047.40/x
  3. Step 3: Cross multiply
    745,605.80x = 1,118,117.10 × 272,047.40
  4. Step 4: Simplify right side
    745,605.80x = 304,180,849,950.54
  5. Step 5: Solve for x
    x = 304,180,849,950.54/745,605.80
  6. Step 6: Final answer
    x = 407,964.70

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Similar ratio
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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.