Home / 830,157.86-1,138,145.38-815,024.23

Finding the Fourth Proportional to 830,157.86, 1,138,145.38 and 815,024.23

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Solution

The fourth proportional to 830,157.86, 1,138,145.38 and 815,024.23 is: 1,117,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,157.86 : 1,138,145.38 = 815,024.23 : x
  2. Step 2: Convert to fraction form
    830,157.86/1,138,145.38 = 815,024.23/x
  3. Step 3: Cross multiply
    830,157.86x = 1,138,145.38 × 815,024.23
  4. Step 4: Simplify right side
    830,157.86x = 927,616,057,079.63
  5. Step 5: Solve for x
    x = 927,616,057,079.63/830,157.86
  6. Step 6: Final answer
    x = 1,117,397.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.