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Finding the Fourth Proportional to 660,738.28, 912,257.67 and 507,502.48

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Solution

The fourth proportional to 660,738.28, 912,257.67 and 507,502.48 is: 700,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,738.28 : 912,257.67 = 507,502.48 : x
  2. Step 2: Convert to fraction form
    660,738.28/912,257.67 = 507,502.48/x
  3. Step 3: Cross multiply
    660,738.28x = 912,257.67 × 507,502.48
  4. Step 4: Simplify right side
    660,738.28x = 462,973,029,924.02
  5. Step 5: Solve for x
    x = 462,973,029,924.02/660,738.28
  6. Step 6: Final answer
    x = 700,690.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.