Home / 1,210,929.75-1,671,134.90-674,385.75

Finding the Fourth Proportional to 1,210,929.75, 1,671,134.90 and 674,385.75

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Solution

The fourth proportional to 1,210,929.75, 1,671,134.90 and 674,385.75 is: 930,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,929.75 : 1,671,134.90 = 674,385.75 : x
  2. Step 2: Convert to fraction form
    1,210,929.75/1,671,134.90 = 674,385.75/x
  3. Step 3: Cross multiply
    1,210,929.75x = 1,671,134.90 × 674,385.75
  4. Step 4: Simplify right side
    1,210,929.75x = 1,126,989,559,515.75
  5. Step 5: Solve for x
    x = 1,126,989,559,515.75/1,210,929.75
  6. Step 6: Final answer
    x = 930,681.21

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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.