Home / 687,075.40-1,030,613.10-610,967.80

Finding the Fourth Proportional to 687,075.40, 1,030,613.10 and 610,967.80

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Solution

The fourth proportional to 687,075.40, 1,030,613.10 and 610,967.80 is: 916,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,075.40 : 1,030,613.10 = 610,967.80 : x
  2. Step 2: Convert to fraction form
    687,075.40/1,030,613.10 = 610,967.80/x
  3. Step 3: Cross multiply
    687,075.40x = 1,030,613.10 × 610,967.80
  4. Step 4: Simplify right side
    687,075.40x = 629,671,418,358.18
  5. Step 5: Solve for x
    x = 629,671,418,358.18/687,075.40
  6. Step 6: Final answer
    x = 916,451.70

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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.