Home / 1,720,397.80-2,579,721.90-1,010,643.40

Finding the Fourth Proportional to 1,720,397.80, 2,579,721.90 and 1,010,643.40

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Solution

The fourth proportional to 1,720,397.80, 2,579,721.90 and 1,010,643.40 is: 1,515,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,397.80 : 2,579,721.90 = 1,010,643.40 : x
  2. Step 2: Convert to fraction form
    1,720,397.80/2,579,721.90 = 1,010,643.40/x
  3. Step 3: Cross multiply
    1,720,397.80x = 2,579,721.90 × 1,010,643.40
  4. Step 4: Simplify right side
    1,720,397.80x = 2,607,178,912,070.46
  5. Step 5: Solve for x
    x = 2,607,178,912,070.46/1,720,397.80
  6. Step 6: Final answer
    x = 1,515,451.20

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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.