Home / 628,798.53-867,714.75-342,319.62

Finding the Fourth Proportional to 628,798.53, 867,714.75 and 342,319.62

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Solution

The fourth proportional to 628,798.53, 867,714.75 and 342,319.62 is: 472,386.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,798.53 : 867,714.75 = 342,319.62 : x
  2. Step 2: Convert to fraction form
    628,798.53/867,714.75 = 342,319.62/x
  3. Step 3: Cross multiply
    628,798.53x = 867,714.75 × 342,319.62
  4. Step 4: Simplify right side
    628,798.53x = 297,035,783,488.40
  5. Step 5: Solve for x
    x = 297,035,783,488.40/628,798.53
  6. Step 6: Final answer
    x = 472,386.26

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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.