Home / 712,498.40-1,068,358.80-291,298.40

Finding the Fourth Proportional to 712,498.40, 1,068,358.80 and 291,298.40

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Solution

The fourth proportional to 712,498.40, 1,068,358.80 and 291,298.40 is: 436,788.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,498.40 : 1,068,358.80 = 291,298.40 : x
  2. Step 2: Convert to fraction form
    712,498.40/1,068,358.80 = 291,298.40/x
  3. Step 3: Cross multiply
    712,498.40x = 1,068,358.80 × 291,298.40
  4. Step 4: Simplify right side
    712,498.40x = 311,211,209,065.92
  5. Step 5: Solve for x
    x = 311,211,209,065.92/712,498.40
  6. Step 6: Final answer
    x = 436,788.64

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1.5x scale

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.