Home / 1,012,208.40-1,518,312.60-412,970.40

Finding the Fourth Proportional to 1,012,208.40, 1,518,312.60 and 412,970.40

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Solution

The fourth proportional to 1,012,208.40, 1,518,312.60 and 412,970.40 is: 619,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,208.40 : 1,518,312.60 = 412,970.40 : x
  2. Step 2: Convert to fraction form
    1,012,208.40/1,518,312.60 = 412,970.40/x
  3. Step 3: Cross multiply
    1,012,208.40x = 1,518,312.60 × 412,970.40
  4. Step 4: Simplify right side
    1,012,208.40x = 627,018,161,747.04
  5. Step 5: Solve for x
    x = 627,018,161,747.04/1,012,208.40
  6. Step 6: Final answer
    x = 619,455.60

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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.