Home / 938,369.60-1,407,554.40-432,929.60

Finding the Fourth Proportional to 938,369.60, 1,407,554.40 and 432,929.60

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Solution

The fourth proportional to 938,369.60, 1,407,554.40 and 432,929.60 is: 649,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,369.60 : 1,407,554.40 = 432,929.60 : x
  2. Step 2: Convert to fraction form
    938,369.60/1,407,554.40 = 432,929.60/x
  3. Step 3: Cross multiply
    938,369.60x = 1,407,554.40 × 432,929.60
  4. Step 4: Simplify right side
    938,369.60x = 609,371,963,370.24
  5. Step 5: Solve for x
    x = 609,371,963,370.24/938,369.60
  6. Step 6: Final answer
    x = 649,394.40

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Double scale
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Similar ratio
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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.