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Finding the Fourth Proportional to 570,155.38, 786,761.02 and 340,666.98

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Solution

The fourth proportional to 570,155.38, 786,761.02 and 340,666.98 is: 470,088.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,155.38 : 786,761.02 = 340,666.98 : x
  2. Step 2: Convert to fraction form
    570,155.38/786,761.02 = 340,666.98/x
  3. Step 3: Cross multiply
    570,155.38x = 786,761.02 × 340,666.98
  4. Step 4: Simplify right side
    570,155.38x = 268,023,500,665.12
  5. Step 5: Solve for x
    x = 268,023,500,665.12/570,155.38
  6. Step 6: Final answer
    x = 470,088.52

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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.