Home / 1,316,423.60-1,970,698.80-783,670.40

Finding the Fourth Proportional to 1,316,423.60, 1,970,698.80 and 783,670.40

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Solution

The fourth proportional to 1,316,423.60, 1,970,698.80 and 783,670.40 is: 1,173,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,423.60 : 1,970,698.80 = 783,670.40 : x
  2. Step 2: Convert to fraction form
    1,316,423.60/1,970,698.80 = 783,670.40/x
  3. Step 3: Cross multiply
    1,316,423.60x = 1,970,698.80 × 783,670.40
  4. Step 4: Simplify right side
    1,316,423.60x = 1,544,378,316,875.52
  5. Step 5: Solve for x
    x = 1,544,378,316,875.52/1,316,423.60
  6. Step 6: Final answer
    x = 1,173,162.13

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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.