Home / 877,320.06-1,316,466.69-428,044.62

Finding the Fourth Proportional to 877,320.06, 1,316,466.69 and 428,044.62

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Solution

The fourth proportional to 877,320.06, 1,316,466.69 and 428,044.62 is: 642,304.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,320.06 : 1,316,466.69 = 428,044.62 : x
  2. Step 2: Convert to fraction form
    877,320.06/1,316,466.69 = 428,044.62/x
  3. Step 3: Cross multiply
    877,320.06x = 1,316,466.69 × 428,044.62
  4. Step 4: Simplify right side
    877,320.06x = 563,506,484,063.71
  5. Step 5: Solve for x
    x = 563,506,484,063.71/877,320.06
  6. Step 6: Final answer
    x = 642,304.34

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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.