Home / 688,686.86-1,032,438.62-239,349.35

Finding the Fourth Proportional to 688,686.86, 1,032,438.62 and 239,349.35

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Solution

The fourth proportional to 688,686.86, 1,032,438.62 and 239,349.35 is: 358,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,686.86 : 1,032,438.62 = 239,349.35 : x
  2. Step 2: Convert to fraction form
    688,686.86/1,032,438.62 = 239,349.35/x
  3. Step 3: Cross multiply
    688,686.86x = 1,032,438.62 × 239,349.35
  4. Step 4: Simplify right side
    688,686.86x = 247,113,506,252.96
  5. Step 5: Solve for x
    x = 247,113,506,252.96/688,686.86
  6. Step 6: Final answer
    x = 358,818.39

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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.