Home / 961,409.70-1,442,114.55-429,968.70

Finding the Fourth Proportional to 961,409.70, 1,442,114.55 and 429,968.70

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Solution

The fourth proportional to 961,409.70, 1,442,114.55 and 429,968.70 is: 644,953.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,409.70 : 1,442,114.55 = 429,968.70 : x
  2. Step 2: Convert to fraction form
    961,409.70/1,442,114.55 = 429,968.70/x
  3. Step 3: Cross multiply
    961,409.70x = 1,442,114.55 × 429,968.70
  4. Step 4: Simplify right side
    961,409.70x = 620,064,118,314.59
  5. Step 5: Solve for x
    x = 620,064,118,314.59/961,409.70
  6. Step 6: Final answer
    x = 644,953.05

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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.