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Finding the Fourth Proportional to 545,733.99, 752,709.47 and 400,490.71

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Solution

The fourth proportional to 545,733.99, 752,709.47 and 400,490.71 is: 552,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,733.99 : 752,709.47 = 400,490.71 : x
  2. Step 2: Convert to fraction form
    545,733.99/752,709.47 = 400,490.71/x
  3. Step 3: Cross multiply
    545,733.99x = 752,709.47 × 400,490.71
  4. Step 4: Simplify right side
    545,733.99x = 301,453,150,064.02
  5. Step 5: Solve for x
    x = 301,453,150,064.02/545,733.99
  6. Step 6: Final answer
    x = 552,381.12

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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.