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Finding the Fourth Proportional to 545,613.74, 752,984.80 and 330,762.86

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Solution

The fourth proportional to 545,613.74, 752,984.80 and 330,762.86 is: 456,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,613.74 : 752,984.80 = 330,762.86 : x
  2. Step 2: Convert to fraction form
    545,613.74/752,984.80 = 330,762.86/x
  3. Step 3: Cross multiply
    545,613.74x = 752,984.80 × 330,762.86
  4. Step 4: Simplify right side
    545,613.74x = 249,059,402,219.60
  5. Step 5: Solve for x
    x = 249,059,402,219.60/545,613.74
  6. Step 6: Final answer
    x = 456,475.68

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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.