Home / 936,329.10-1,402,117.65-515,129.10

Finding the Fourth Proportional to 936,329.10, 1,402,117.65 and 515,129.10

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Solution

The fourth proportional to 936,329.10, 1,402,117.65 and 515,129.10 is: 771,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,329.10 : 1,402,117.65 = 515,129.10 : x
  2. Step 2: Convert to fraction form
    936,329.10/1,402,117.65 = 515,129.10/x
  3. Step 3: Cross multiply
    936,329.10x = 1,402,117.65 × 515,129.10
  4. Step 4: Simplify right side
    936,329.10x = 722,271,603,138.62
  5. Step 5: Solve for x
    x = 722,271,603,138.62/936,329.10
  6. Step 6: Final answer
    x = 771,386.47

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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.