Home / 563,574.33-778,477.95-420,085.26

Finding the Fourth Proportional to 563,574.33, 778,477.95 and 420,085.26

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Solution

The fourth proportional to 563,574.33, 778,477.95 and 420,085.26 is: 580,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,574.33 : 778,477.95 = 420,085.26 : x
  2. Step 2: Convert to fraction form
    563,574.33/778,477.95 = 420,085.26/x
  3. Step 3: Cross multiply
    563,574.33x = 778,477.95 × 420,085.26
  4. Step 4: Simplify right side
    563,574.33x = 327,027,112,030.02
  5. Step 5: Solve for x
    x = 327,027,112,030.02/563,574.33
  6. Step 6: Final answer
    x = 580,273.26

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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.