Home / 758,955.12-1,047,256.86-487,390.86

Finding the Fourth Proportional to 758,955.12, 1,047,256.86 and 487,390.86

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Solution

The fourth proportional to 758,955.12, 1,047,256.86 and 487,390.86 is: 672,534.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,955.12 : 1,047,256.86 = 487,390.86 : x
  2. Step 2: Convert to fraction form
    758,955.12/1,047,256.86 = 487,390.86/x
  3. Step 3: Cross multiply
    758,955.12x = 1,047,256.86 × 487,390.86
  4. Step 4: Simplify right side
    758,955.12x = 510,423,421,636.30
  5. Step 5: Solve for x
    x = 510,423,421,636.30/758,955.12
  6. Step 6: Final answer
    x = 672,534.39

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Double scale
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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.