Home / 877,811.80-1,316,717.70-578,630.20

Finding the Fourth Proportional to 877,811.80, 1,316,717.70 and 578,630.20

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Solution

The fourth proportional to 877,811.80, 1,316,717.70 and 578,630.20 is: 867,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,811.80 : 1,316,717.70 = 578,630.20 : x
  2. Step 2: Convert to fraction form
    877,811.80/1,316,717.70 = 578,630.20/x
  3. Step 3: Cross multiply
    877,811.80x = 1,316,717.70 × 578,630.20
  4. Step 4: Simplify right side
    877,811.80x = 761,892,626,094.54
  5. Step 5: Solve for x
    x = 761,892,626,094.54/877,811.80
  6. Step 6: Final answer
    x = 867,945.30

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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.