Home / 760,428.12-1,049,501.34-438,075.48

Finding the Fourth Proportional to 760,428.12, 1,049,501.34 and 438,075.48

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Solution

The fourth proportional to 760,428.12, 1,049,501.34 and 438,075.48 is: 604,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,428.12 : 1,049,501.34 = 438,075.48 : x
  2. Step 2: Convert to fraction form
    760,428.12/1,049,501.34 = 438,075.48/x
  3. Step 3: Cross multiply
    760,428.12x = 1,049,501.34 × 438,075.48
  4. Step 4: Simplify right side
    760,428.12x = 459,760,803,281.14
  5. Step 5: Solve for x
    x = 459,760,803,281.14/760,428.12
  6. Step 6: Final answer
    x = 604,607.84

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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.