Home / 778,750.16-1,168,119.98-419,090.24

Finding the Fourth Proportional to 778,750.16, 1,168,119.98 and 419,090.24

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Solution

The fourth proportional to 778,750.16, 1,168,119.98 and 419,090.24 is: 628,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,750.16 : 1,168,119.98 = 419,090.24 : x
  2. Step 2: Convert to fraction form
    778,750.16/1,168,119.98 = 419,090.24/x
  3. Step 3: Cross multiply
    778,750.16x = 1,168,119.98 × 419,090.24
  4. Step 4: Simplify right side
    778,750.16x = 489,547,674,830.94
  5. Step 5: Solve for x
    x = 489,547,674,830.94/778,750.16
  6. Step 6: Final answer
    x = 628,632.52

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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.