Home / 1,547,871.86-2,319,058.10-1,320,929.30

Finding the Fourth Proportional to 1,547,871.86, 2,319,058.10 and 1,320,929.30

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Solution

The fourth proportional to 1,547,871.86, 2,319,058.10 and 1,320,929.30 is: 1,979,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,871.86 : 2,319,058.10 = 1,320,929.30 : x
  2. Step 2: Convert to fraction form
    1,547,871.86/2,319,058.10 = 1,320,929.30/x
  3. Step 3: Cross multiply
    1,547,871.86x = 2,319,058.10 × 1,320,929.30
  4. Step 4: Simplify right side
    1,547,871.86x = 3,063,311,792,692.33
  5. Step 5: Solve for x
    x = 3,063,311,792,692.33/1,547,871.86
  6. Step 6: Final answer
    x = 1,979,047.41

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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.