Finding the Fourth Proportional to 679,923.40, 1,018,502.70 and 347,686.60
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Solution
The fourth proportional to 679,923.40, 1,018,502.70 and 347,686.60 is: 520,822.99
Step by Step Solution
- Step 1: Write the proportion equation
679,923.40 : 1,018,502.70 = 347,686.60 : x - Step 2: Convert to fraction form
679,923.40/1,018,502.70 = 347,686.60/x - Step 3: Cross multiply
679,923.40x = 1,018,502.70 × 347,686.60 - Step 4: Simplify right side
679,923.40x = 354,119,740,853.82 - Step 5: Solve for x
x = 354,119,740,853.82/679,923.40 - Step 6: Final answer
x = 520,822.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.