Finding the Fourth Proportional to 688,264,430.40, 1,032,395,707.44 and 319,597,786.08
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Solution
The fourth proportional to 688,264,430.40, 1,032,395,707.44 and 319,597,786.08 is: 479,396,243.48
Step by Step Solution
- Step 1: Write the proportion equation
688,264,430.40 : 1,032,395,707.44 = 319,597,786.08 : x - Step 2: Convert to fraction form
688,264,430.40/1,032,395,707.44 = 319,597,786.08/x - Step 3: Cross multiply
688,264,430.40x = 1,032,395,707.44 × 319,597,786.08 - Step 4: Simplify right side
688,264,430.40x = 329,951,382,456,319,360 - Step 5: Solve for x
x = 329,951,382,456,319,360/688,264,430.40 - Step 6: Final answer
x = 479,396,243.48
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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.