Home / 690,484.42-1,035,726.71-210,714.74

Finding the Fourth Proportional to 690,484.42, 1,035,726.71 and 210,714.74

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Solution

The fourth proportional to 690,484.42, 1,035,726.71 and 210,714.74 is: 316,072.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,484.42 : 1,035,726.71 = 210,714.74 : x
  2. Step 2: Convert to fraction form
    690,484.42/1,035,726.71 = 210,714.74/x
  3. Step 3: Cross multiply
    690,484.42x = 1,035,726.71 × 210,714.74
  4. Step 4: Simplify right side
    690,484.42x = 218,242,884,408.71
  5. Step 5: Solve for x
    x = 218,242,884,408.71/690,484.42
  6. Step 6: Final answer
    x = 316,072.13

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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.