Finding the Fourth Proportional to 688,560.95, 1,032,840.63 and 239,281.85
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Solution
The fourth proportional to 688,560.95, 1,032,840.63 and 239,281.85 is: 358,922.50
Step by Step Solution
- Step 1: Write the proportion equation
688,560.95 : 1,032,840.63 = 239,281.85 : x - Step 2: Convert to fraction form
688,560.95/1,032,840.63 = 239,281.85/x - Step 3: Cross multiply
688,560.95x = 1,032,840.63 × 239,281.85 - Step 4: Simplify right side
688,560.95x = 247,140,019,283.67 - Step 5: Solve for x
x = 247,140,019,283.67/688,560.95 - Step 6: Final answer
x = 358,922.50
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1.5x scale
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.