Home / 961,681.95-1,442,522.93-400,643.55

Finding the Fourth Proportional to 961,681.95, 1,442,522.93 and 400,643.55

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Solution

The fourth proportional to 961,681.95, 1,442,522.93 and 400,643.55 is: 600,965.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,681.95 : 1,442,522.93 = 400,643.55 : x
  2. Step 2: Convert to fraction form
    961,681.95/1,442,522.93 = 400,643.55/x
  3. Step 3: Cross multiply
    961,681.95x = 1,442,522.93 × 400,643.55
  4. Step 4: Simplify right side
    961,681.95x = 577,937,505,628.38
  5. Step 5: Solve for x
    x = 577,937,505,628.38/961,681.95
  6. Step 6: Final answer
    x = 600,965.33

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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.