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Finding the Fourth Proportional to 570,612.15, 788,264.98 and 455,739.98

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Solution

The fourth proportional to 570,612.15, 788,264.98 and 455,739.98 is: 629,576.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,612.15 : 788,264.98 = 455,739.98 : x
  2. Step 2: Convert to fraction form
    570,612.15/788,264.98 = 455,739.98/x
  3. Step 3: Cross multiply
    570,612.15x = 788,264.98 × 455,739.98
  4. Step 4: Simplify right side
    570,612.15x = 359,243,863,702.76
  5. Step 5: Solve for x
    x = 359,243,863,702.76/570,612.15
  6. Step 6: Final answer
    x = 629,576.26

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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.