Home / 877,815.07-1,316,722.60-212,967.07

Finding the Fourth Proportional to 877,815.07, 1,316,722.60 and 212,967.07

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Solution

The fourth proportional to 877,815.07, 1,316,722.60 and 212,967.07 is: 319,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,815.07 : 1,316,722.60 = 212,967.07 : x
  2. Step 2: Convert to fraction form
    877,815.07/1,316,722.60 = 212,967.07/x
  3. Step 3: Cross multiply
    877,815.07x = 1,316,722.60 × 212,967.07
  4. Step 4: Simplify right side
    877,815.07x = 280,418,547,541.17
  5. Step 5: Solve for x
    x = 280,418,547,541.17/877,815.07
  6. Step 6: Final answer
    x = 319,450.60

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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.