Home / 779,364.81-1,075,501.67-439,864.65

Finding the Fourth Proportional to 779,364.81, 1,075,501.67 and 439,864.65

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Solution

The fourth proportional to 779,364.81, 1,075,501.67 and 439,864.65 is: 607,000.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,364.81 : 1,075,501.67 = 439,864.65 : x
  2. Step 2: Convert to fraction form
    779,364.81/1,075,501.67 = 439,864.65/x
  3. Step 3: Cross multiply
    779,364.81x = 1,075,501.67 × 439,864.65
  4. Step 4: Simplify right side
    779,364.81x = 473,075,163,449.64
  5. Step 5: Solve for x
    x = 473,075,163,449.64/779,364.81
  6. Step 6: Final answer
    x = 607,000.93

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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.