Home / 877,557.40-1,315,461.30-403,415.80

Finding the Fourth Proportional to 877,557.40, 1,315,461.30 and 403,415.80

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Solution

The fourth proportional to 877,557.40, 1,315,461.30 and 403,415.80 is: 604,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,557.40 : 1,315,461.30 = 403,415.80 : x
  2. Step 2: Convert to fraction form
    877,557.40/1,315,461.30 = 403,415.80/x
  3. Step 3: Cross multiply
    877,557.40x = 1,315,461.30 × 403,415.80
  4. Step 4: Simplify right side
    877,557.40x = 530,677,872,708.54
  5. Step 5: Solve for x
    x = 530,677,872,708.54/877,557.40
  6. Step 6: Final answer
    x = 604,721.55

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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.