Home / 920,574.32-1,270,301.74-512,714.21

Finding the Fourth Proportional to 920,574.32, 1,270,301.74 and 512,714.21

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Solution

The fourth proportional to 920,574.32, 1,270,301.74 and 512,714.21 is: 707,495.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,574.32 : 1,270,301.74 = 512,714.21 : x
  2. Step 2: Convert to fraction form
    920,574.32/1,270,301.74 = 512,714.21/x
  3. Step 3: Cross multiply
    920,574.32x = 1,270,301.74 × 512,714.21
  4. Step 4: Simplify right side
    920,574.32x = 651,301,745,452.43
  5. Step 5: Solve for x
    x = 651,301,745,452.43/920,574.32
  6. Step 6: Final answer
    x = 707,495.02

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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.