Home / 1,038,308.60-1,556,598.90-439,729.40

Finding the Fourth Proportional to 1,038,308.60, 1,556,598.90 and 439,729.40

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Solution

The fourth proportional to 1,038,308.60, 1,556,598.90 and 439,729.40 is: 659,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,308.60 : 1,556,598.90 = 439,729.40 : x
  2. Step 2: Convert to fraction form
    1,038,308.60/1,556,598.90 = 439,729.40/x
  3. Step 3: Cross multiply
    1,038,308.60x = 1,556,598.90 × 439,729.40
  4. Step 4: Simplify right side
    1,038,308.60x = 684,482,300,337.66
  5. Step 5: Solve for x
    x = 684,482,300,337.66/1,038,308.60
  6. Step 6: Final answer
    x = 659,228.19

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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.