Home / 745,607.90-1,028,950.62-406,075.88

Finding the Fourth Proportional to 745,607.90, 1,028,950.62 and 406,075.88

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Solution

The fourth proportional to 745,607.90, 1,028,950.62 and 406,075.88 is: 560,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,607.90 : 1,028,950.62 = 406,075.88 : x
  2. Step 2: Convert to fraction form
    745,607.90/1,028,950.62 = 406,075.88/x
  3. Step 3: Cross multiply
    745,607.90x = 1,028,950.62 × 406,075.88
  4. Step 4: Simplify right side
    745,607.90x = 417,832,028,493.05
  5. Step 5: Solve for x
    x = 417,832,028,493.05/745,607.90
  6. Step 6: Final answer
    x = 560,391.10

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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.