Home / 1,038,345.40-1,556,643.30-539,709.40

Finding the Fourth Proportional to 1,038,345.40, 1,556,643.30 and 539,709.40

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Solution

The fourth proportional to 1,038,345.40, 1,556,643.30 and 539,709.40 is: 809,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,345.40 : 1,556,643.30 = 539,709.40 : x
  2. Step 2: Convert to fraction form
    1,038,345.40/1,556,643.30 = 539,709.40/x
  3. Step 3: Cross multiply
    1,038,345.40x = 1,556,643.30 × 539,709.40
  4. Step 4: Simplify right side
    1,038,345.40x = 840,135,021,457.02
  5. Step 5: Solve for x
    x = 840,135,021,457.02/1,038,345.40
  6. Step 6: Final answer
    x = 809,109.40

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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.