Home / 563,929.48-778,234.80-309,280.06

Finding the Fourth Proportional to 563,929.48, 778,234.80 and 309,280.06

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Solution

The fourth proportional to 563,929.48, 778,234.80 and 309,280.06 is: 426,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,929.48 : 778,234.80 = 309,280.06 : x
  2. Step 2: Convert to fraction form
    563,929.48/778,234.80 = 309,280.06/x
  3. Step 3: Cross multiply
    563,929.48x = 778,234.80 × 309,280.06
  4. Step 4: Simplify right side
    563,929.48x = 240,692,505,638.09
  5. Step 5: Solve for x
    x = 240,692,505,638.09/563,929.48
  6. Step 6: Final answer
    x = 426,813.13

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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.