Home / 1,210,930.25-1,671,135.59-674,386.25

Finding the Fourth Proportional to 1,210,930.25, 1,671,135.59 and 674,386.25

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Solution

The fourth proportional to 1,210,930.25, 1,671,135.59 and 674,386.25 is: 930,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,930.25 : 1,671,135.59 = 674,386.25 : x
  2. Step 2: Convert to fraction form
    1,210,930.25/1,671,135.59 = 674,386.25/x
  3. Step 3: Cross multiply
    1,210,930.25x = 1,671,135.59 × 674,386.25
  4. Step 4: Simplify right side
    1,210,930.25x = 1,126,990,860,409.71
  5. Step 5: Solve for x
    x = 1,126,990,860,409.71/1,210,930.25
  6. Step 6: Final answer
    x = 930,681.90

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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.