Home / 742,580.15-1,024,762.58-403,048.40

Finding the Fourth Proportional to 742,580.15, 1,024,762.58 and 403,048.40

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Solution

The fourth proportional to 742,580.15, 1,024,762.58 and 403,048.40 is: 556,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,580.15 : 1,024,762.58 = 403,048.40 : x
  2. Step 2: Convert to fraction form
    742,580.15/1,024,762.58 = 403,048.40/x
  3. Step 3: Cross multiply
    742,580.15x = 1,024,762.58 × 403,048.40
  4. Step 4: Simplify right side
    742,580.15x = 413,028,921,818.40
  5. Step 5: Solve for x
    x = 413,028,921,818.40/742,580.15
  6. Step 6: Final answer
    x = 556,207.87

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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.