Home / 405,230.26-607,302.04-315,381.46

Finding the Fourth Proportional to 405,230.26, 607,302.04 and 315,381.46

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Solution

The fourth proportional to 405,230.26, 607,302.04 and 315,381.46 is: 472,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,230.26 : 607,302.04 = 315,381.46 : x
  2. Step 2: Convert to fraction form
    405,230.26/607,302.04 = 315,381.46/x
  3. Step 3: Cross multiply
    405,230.26x = 607,302.04 × 315,381.46
  4. Step 4: Simplify right side
    405,230.26x = 191,531,804,036.18
  5. Step 5: Solve for x
    x = 191,531,804,036.18/405,230.26
  6. Step 6: Final answer
    x = 472,649.31

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1.5x scale

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.