Home / 779,459.93-1,075,745.46-648,406.07

Finding the Fourth Proportional to 779,459.93, 1,075,745.46 and 648,406.07

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Solution

The fourth proportional to 779,459.93, 1,075,745.46 and 648,406.07 is: 894,875.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,459.93 : 1,075,745.46 = 648,406.07 : x
  2. Step 2: Convert to fraction form
    779,459.93/1,075,745.46 = 648,406.07/x
  3. Step 3: Cross multiply
    779,459.93x = 1,075,745.46 × 648,406.07
  4. Step 4: Simplify right side
    779,459.93x = 697,519,886,038.94
  5. Step 5: Solve for x
    x = 697,519,886,038.94/779,459.93
  6. Step 6: Final answer
    x = 894,875.87

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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.