Home / 507,746.72-761,779.26-305,563.40

Finding the Fourth Proportional to 507,746.72, 761,779.26 and 305,563.40

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Solution

The fourth proportional to 507,746.72, 761,779.26 and 305,563.40 is: 458,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,746.72 : 761,779.26 = 305,563.40 : x
  2. Step 2: Convert to fraction form
    507,746.72/761,779.26 = 305,563.40/x
  3. Step 3: Cross multiply
    507,746.72x = 761,779.26 × 305,563.40
  4. Step 4: Simplify right side
    507,746.72x = 232,771,860,735.08
  5. Step 5: Solve for x
    x = 232,771,860,735.08/507,746.72
  6. Step 6: Final answer
    x = 458,440.89

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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.