Finding the Fourth Proportional to 390,879.06, 586,320.93 and 110,398.74
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Solution
The fourth proportional to 390,879.06, 586,320.93 and 110,398.74 is: 165,598.77
Step by Step Solution
- Step 1: Write the proportion equation
390,879.06 : 586,320.93 = 110,398.74 : x - Step 2: Convert to fraction form
390,879.06/586,320.93 = 110,398.74/x - Step 3: Cross multiply
390,879.06x = 586,320.93 × 110,398.74 - Step 4: Simplify right side
390,879.06x = 64,729,091,907.63 - Step 5: Solve for x
x = 64,729,091,907.63/390,879.06 - Step 6: Final answer
x = 165,598.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.