Home / 1,069,335.81-1,603,878.87-429,613.68

Finding the Fourth Proportional to 1,069,335.81, 1,603,878.87 and 429,613.68

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Solution

The fourth proportional to 1,069,335.81, 1,603,878.87 and 429,613.68 is: 644,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,335.81 : 1,603,878.87 = 429,613.68 : x
  2. Step 2: Convert to fraction form
    1,069,335.81/1,603,878.87 = 429,613.68/x
  3. Step 3: Cross multiply
    1,069,335.81x = 1,603,878.87 × 429,613.68
  4. Step 4: Simplify right side
    1,069,335.81x = 689,048,303,614.94
  5. Step 5: Solve for x
    x = 689,048,303,614.94/1,069,335.81
  6. Step 6: Final answer
    x = 644,370.36

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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.