Home / 942,108.56-1,300,072.40-512,388.48

Finding the Fourth Proportional to 942,108.56, 1,300,072.40 and 512,388.48

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Solution

The fourth proportional to 942,108.56, 1,300,072.40 and 512,388.48 is: 707,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,108.56 : 1,300,072.40 = 512,388.48 : x
  2. Step 2: Convert to fraction form
    942,108.56/1,300,072.40 = 512,388.48/x
  3. Step 3: Cross multiply
    942,108.56x = 1,300,072.40 × 512,388.48
  4. Step 4: Simplify right side
    942,108.56x = 666,142,120,925.95
  5. Step 5: Solve for x
    x = 666,142,120,925.95/942,108.56
  6. Step 6: Final answer
    x = 707,075.75

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1.5x scale

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.