Home / 860,466.48-1,187,444.64-478,485.04

Finding the Fourth Proportional to 860,466.48, 1,187,444.64 and 478,485.04

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Solution

The fourth proportional to 860,466.48, 1,187,444.64 and 478,485.04 is: 660,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,466.48 : 1,187,444.64 = 478,485.04 : x
  2. Step 2: Convert to fraction form
    860,466.48/1,187,444.64 = 478,485.04/x
  3. Step 3: Cross multiply
    860,466.48x = 1,187,444.64 × 478,485.04
  4. Step 4: Simplify right side
    860,466.48x = 568,174,496,068.19
  5. Step 5: Solve for x
    x = 568,174,496,068.19/860,466.48
  6. Step 6: Final answer
    x = 660,309.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.