Home / 1,316,440.40-1,974,660.60-319,168.40

Finding the Fourth Proportional to 1,316,440.40, 1,974,660.60 and 319,168.40

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Solution

The fourth proportional to 1,316,440.40, 1,974,660.60 and 319,168.40 is: 478,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,440.40 : 1,974,660.60 = 319,168.40 : x
  2. Step 2: Convert to fraction form
    1,316,440.40/1,974,660.60 = 319,168.40/x
  3. Step 3: Cross multiply
    1,316,440.40x = 1,974,660.60 × 319,168.40
  4. Step 4: Simplify right side
    1,316,440.40x = 630,249,264,245.04
  5. Step 5: Solve for x
    x = 630,249,264,245.04/1,316,440.40
  6. Step 6: Final answer
    x = 478,752.60

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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.