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Finding the Fourth Proportional to 545,613.23, 752,946.47 and 316,303.45

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Solution

The fourth proportional to 545,613.23, 752,946.47 and 316,303.45 is: 436,498.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,613.23 : 752,946.47 = 316,303.45 : x
  2. Step 2: Convert to fraction form
    545,613.23/752,946.47 = 316,303.45/x
  3. Step 3: Cross multiply
    545,613.23x = 752,946.47 × 316,303.45
  4. Step 4: Simplify right side
    545,613.23x = 238,159,564,789.76
  5. Step 5: Solve for x
    x = 238,159,564,789.76/545,613.23
  6. Step 6: Final answer
    x = 436,498.88

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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.