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Finding the Fourth Proportional to 569,746.63, 786,264.13 and 311,647.83

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Solution

The fourth proportional to 569,746.63, 786,264.13 and 311,647.83 is: 430,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,746.63 : 786,264.13 = 311,647.83 : x
  2. Step 2: Convert to fraction form
    569,746.63/786,264.13 = 311,647.83/x
  3. Step 3: Cross multiply
    569,746.63x = 786,264.13 × 311,647.83
  4. Step 4: Simplify right side
    569,746.63x = 245,037,509,921.34
  5. Step 5: Solve for x
    x = 245,037,509,921.34/569,746.63
  6. Step 6: Final answer
    x = 430,081.54

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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.