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Finding the Fourth Proportional to 661,643.70, 992,465.55 and 600,626.40

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Solution

The fourth proportional to 661,643.70, 992,465.55 and 600,626.40 is: 900,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,643.70 : 992,465.55 = 600,626.40 : x
  2. Step 2: Convert to fraction form
    661,643.70/992,465.55 = 600,626.40/x
  3. Step 3: Cross multiply
    661,643.70x = 992,465.55 × 600,626.40
  4. Step 4: Simplify right side
    661,643.70x = 596,101,010,420.52
  5. Step 5: Solve for x
    x = 596,101,010,420.52/661,643.70
  6. Step 6: Final answer
    x = 900,939.60

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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.