Home / 744,341.40-1,116,512.10-429,413.40

Finding the Fourth Proportional to 744,341.40, 1,116,512.10 and 429,413.40

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Solution

The fourth proportional to 744,341.40, 1,116,512.10 and 429,413.40 is: 644,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,341.40 : 1,116,512.10 = 429,413.40 : x
  2. Step 2: Convert to fraction form
    744,341.40/1,116,512.10 = 429,413.40/x
  3. Step 3: Cross multiply
    744,341.40x = 1,116,512.10 × 429,413.40
  4. Step 4: Simplify right side
    744,341.40x = 479,445,257,002.14
  5. Step 5: Solve for x
    x = 479,445,257,002.14/744,341.40
  6. Step 6: Final answer
    x = 644,120.10

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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.