Home / 1,186,263.12-1,637,034.95-642,386.46

Finding the Fourth Proportional to 1,186,263.12, 1,637,034.95 and 642,386.46

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Solution

The fourth proportional to 1,186,263.12, 1,637,034.95 and 642,386.46 is: 886,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,263.12 : 1,637,034.95 = 642,386.46 : x
  2. Step 2: Convert to fraction form
    1,186,263.12/1,637,034.95 = 642,386.46/x
  3. Step 3: Cross multiply
    1,186,263.12x = 1,637,034.95 × 642,386.46
  4. Step 4: Simplify right side
    1,186,263.12x = 1,051,609,086,426.78
  5. Step 5: Solve for x
    x = 1,051,609,086,426.78/1,186,263.12
  6. Step 6: Final answer
    x = 886,488.90

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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.