Home / 1,270,521.51-1,905,806.83-310,985.51

Finding the Fourth Proportional to 1,270,521.51, 1,905,806.83 and 310,985.51

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Solution

The fourth proportional to 1,270,521.51, 1,905,806.83 and 310,985.51 is: 466,484.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,521.51 : 1,905,806.83 = 310,985.51 : x
  2. Step 2: Convert to fraction form
    1,270,521.51/1,905,806.83 = 310,985.51/x
  3. Step 3: Cross multiply
    1,270,521.51x = 1,905,806.83 × 310,985.51
  4. Step 4: Simplify right side
    1,270,521.51x = 592,678,314,725.38
  5. Step 5: Solve for x
    x = 592,678,314,725.38/1,270,521.51
  6. Step 6: Final answer
    x = 466,484.28

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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.