Home / 678,070.42-1,021,166.15-617,536.08

Finding the Fourth Proportional to 678,070.42, 1,021,166.15 and 617,536.08

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Solution

The fourth proportional to 678,070.42, 1,021,166.15 and 617,536.08 is: 930,002.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,070.42 : 1,021,166.15 = 617,536.08 : x
  2. Step 2: Convert to fraction form
    678,070.42/1,021,166.15 = 617,536.08/x
  3. Step 3: Cross multiply
    678,070.42x = 1,021,166.15 × 617,536.08
  4. Step 4: Simplify right side
    678,070.42x = 630,606,938,212.01
  5. Step 5: Solve for x
    x = 630,606,938,212.01/678,070.42
  6. Step 6: Final answer
    x = 930,002.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.