Home / 942,547.38-1,300,721.01-512,830.74

Finding the Fourth Proportional to 942,547.38, 1,300,721.01 and 512,830.74

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Solution

The fourth proportional to 942,547.38, 1,300,721.01 and 512,830.74 is: 707,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,547.38 : 1,300,721.01 = 512,830.74 : x
  2. Step 2: Convert to fraction form
    942,547.38/1,300,721.01 = 512,830.74/x
  3. Step 3: Cross multiply
    942,547.38x = 1,300,721.01 × 512,830.74
  4. Step 4: Simplify right side
    942,547.38x = 667,049,718,091.85
  5. Step 5: Solve for x
    x = 667,049,718,091.85/942,547.38
  6. Step 6: Final answer
    x = 707,709.48

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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.