Home / 648,269.40-894,623.63-357,915.45

Finding the Fourth Proportional to 648,269.40, 894,623.63 and 357,915.45

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Solution

The fourth proportional to 648,269.40, 894,623.63 and 357,915.45 is: 493,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,269.40 : 894,623.63 = 357,915.45 : x
  2. Step 2: Convert to fraction form
    648,269.40/894,623.63 = 357,915.45/x
  3. Step 3: Cross multiply
    648,269.40x = 894,623.63 × 357,915.45
  4. Step 4: Simplify right side
    648,269.40x = 320,199,617,322.51
  5. Step 5: Solve for x
    x = 320,199,617,322.51/648,269.40
  6. Step 6: Final answer
    x = 493,929.87

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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.