Home / 745,603.65-1,028,944.76-406,071.63

Finding the Fourth Proportional to 745,603.65, 1,028,944.76 and 406,071.63

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Solution

The fourth proportional to 745,603.65, 1,028,944.76 and 406,071.63 is: 560,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,603.65 : 1,028,944.76 = 406,071.63 : x
  2. Step 2: Convert to fraction form
    745,603.65/1,028,944.76 = 406,071.63/x
  3. Step 3: Cross multiply
    745,603.65x = 1,028,944.76 × 406,071.63
  4. Step 4: Simplify right side
    745,603.65x = 417,825,273,842.80
  5. Step 5: Solve for x
    x = 417,825,273,842.80/745,603.65
  6. Step 6: Final answer
    x = 560,385.23

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1.5x scale

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.