Home / 1,312,526.49-1,811,686.89-761,381.48

Finding the Fourth Proportional to 1,312,526.49, 1,811,686.89 and 761,381.48

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Solution

The fourth proportional to 1,312,526.49, 1,811,686.89 and 761,381.48 is: 1,050,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,526.49 : 1,811,686.89 = 761,381.48 : x
  2. Step 2: Convert to fraction form
    1,312,526.49/1,811,686.89 = 761,381.48/x
  3. Step 3: Cross multiply
    1,312,526.49x = 1,811,686.89 × 761,381.48
  4. Step 4: Simplify right side
    1,312,526.49x = 1,379,384,836,546.36
  5. Step 5: Solve for x
    x = 1,379,384,836,546.36/1,312,526.49
  6. Step 6: Final answer
    x = 1,050,938.66

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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.