Home / 778,981.72-1,075,044.54-439,326.04

Finding the Fourth Proportional to 778,981.72, 1,075,044.54 and 439,326.04

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Solution

The fourth proportional to 778,981.72, 1,075,044.54 and 439,326.04 is: 606,298.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,981.72 : 1,075,044.54 = 439,326.04 : x
  2. Step 2: Convert to fraction form
    778,981.72/1,075,044.54 = 439,326.04/x
  3. Step 3: Cross multiply
    778,981.72x = 1,075,044.54 × 439,326.04
  4. Step 4: Simplify right side
    778,981.72x = 472,295,060,581.82
  5. Step 5: Solve for x
    x = 472,295,060,581.82/778,981.72
  6. Step 6: Final answer
    x = 606,298.00

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1.5x scale

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.