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Finding the Fourth Proportional to 570,458.34, 855,715.15 and 470,435.90

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Solution

The fourth proportional to 570,458.34, 855,715.15 and 470,435.90 is: 705,676.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,458.34 : 855,715.15 = 470,435.90 : x
  2. Step 2: Convert to fraction form
    570,458.34/855,715.15 = 470,435.90/x
  3. Step 3: Cross multiply
    570,458.34x = 855,715.15 × 470,435.90
  4. Step 4: Simplify right side
    570,458.34x = 402,559,126,733.89
  5. Step 5: Solve for x
    x = 402,559,126,733.89/570,458.34
  6. Step 6: Final answer
    x = 705,676.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.