Home / 948,370.07-1,308,747.87-512,784.32

Finding the Fourth Proportional to 948,370.07, 1,308,747.87 and 512,784.32

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Solution

The fourth proportional to 948,370.07, 1,308,747.87 and 512,784.32 is: 707,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,370.07 : 1,308,747.87 = 512,784.32 : x
  2. Step 2: Convert to fraction form
    948,370.07/1,308,747.87 = 512,784.32/x
  3. Step 3: Cross multiply
    948,370.07x = 1,308,747.87 × 512,784.32
  4. Step 4: Simplify right side
    948,370.07x = 671,105,389,841.27
  5. Step 5: Solve for x
    x = 671,105,389,841.27/948,370.07
  6. Step 6: Final answer
    x = 707,640.84

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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.