Home / 860,346.08-1,187,426.20-497,969.76

Finding the Fourth Proportional to 860,346.08, 1,187,426.20 and 497,969.76

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Solution

The fourth proportional to 860,346.08, 1,187,426.20 and 497,969.76 is: 687,284.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,346.08 : 1,187,426.20 = 497,969.76 : x
  2. Step 2: Convert to fraction form
    860,346.08/1,187,426.20 = 497,969.76/x
  3. Step 3: Cross multiply
    860,346.08x = 1,187,426.20 × 497,969.76
  4. Step 4: Simplify right side
    860,346.08x = 591,302,339,831.71
  5. Step 5: Solve for x
    x = 591,302,339,831.71/860,346.08
  6. Step 6: Final answer
    x = 687,284.28

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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.