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Finding the Fourth Proportional to 545,332.67, 752,364.27 and 315,764.63

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Solution

The fourth proportional to 545,332.67, 752,364.27 and 315,764.63 is: 435,642.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,332.67 : 752,364.27 = 315,764.63 : x
  2. Step 2: Convert to fraction form
    545,332.67/752,364.27 = 315,764.63/x
  3. Step 3: Cross multiply
    545,332.67x = 752,364.27 × 315,764.63
  4. Step 4: Simplify right side
    545,332.67x = 237,570,025,341.77
  5. Step 5: Solve for x
    x = 237,570,025,341.77/545,332.67
  6. Step 6: Final answer
    x = 435,642.39

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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.