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Finding the Fourth Proportional to 557,332.51, 769,123.38 and 302,685.52

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Solution

The fourth proportional to 557,332.51, 769,123.38 and 302,685.52 is: 417,708.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,332.51 : 769,123.38 = 302,685.52 : x
  2. Step 2: Convert to fraction form
    557,332.51/769,123.38 = 302,685.52/x
  3. Step 3: Cross multiply
    557,332.51x = 769,123.38 × 302,685.52
  4. Step 4: Simplify right side
    557,332.51x = 232,802,510,219.46
  5. Step 5: Solve for x
    x = 232,802,510,219.46/557,332.51
  6. Step 6: Final answer
    x = 417,708.47

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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.