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Finding the Fourth Proportional to 761,851.86, 1,142,798.85 and 424,703.94

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Solution

The fourth proportional to 761,851.86, 1,142,798.85 and 424,703.94 is: 637,067.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,851.86 : 1,142,798.85 = 424,703.94 : x
  2. Step 2: Convert to fraction form
    761,851.86/1,142,798.85 = 424,703.94/x
  3. Step 3: Cross multiply
    761,851.86x = 1,142,798.85 × 424,703.94
  4. Step 4: Simplify right side
    761,851.86x = 485,351,174,222.47
  5. Step 5: Solve for x
    x = 485,351,174,222.47/761,851.86
  6. Step 6: Final answer
    x = 637,067.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.