Home / 1,381,435.40-2,072,433.35-434,585.90

Finding the Fourth Proportional to 1,381,435.40, 2,072,433.35 and 434,585.90

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Solution

The fourth proportional to 1,381,435.40, 2,072,433.35 and 434,585.90 is: 651,967.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,435.40 : 2,072,433.35 = 434,585.90 : x
  2. Step 2: Convert to fraction form
    1,381,435.40/2,072,433.35 = 434,585.90/x
  3. Step 3: Cross multiply
    1,381,435.40x = 2,072,433.35 × 434,585.90
  4. Step 4: Simplify right side
    1,381,435.40x = 900,650,312,599.77
  5. Step 5: Solve for x
    x = 900,650,312,599.77/1,381,435.40
  6. Step 6: Final answer
    x = 651,967.01

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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.